Our Glamstead Solar System

Here we go…I was asked to supply the info and diagram of our solar system. I hope this can be of use to folks who are thinking about going off-grid or grid-tied.

After working through the numbers I felt a 4kw – 5kw inverter would handle our needs. Yeah, I maybe didn’t get it right…thought it would meet our needs.

Later I thought about adding electric baseboard heaters…right after I figured out we needed air conditioning. So be careful on how you calculate your electric needs…then add 40 – 50%.

So here are “jpgs” for each part…

Here is the link for a PDF file of the whole thing…

< click here for Glamstead Solar Sytem PDF file >



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Very Energy Efficient Air Conditioning for Solar Systems

As you know we have a solar system…3.8kw Canadian Solar PVs, 400ah LifePo4 batteries, 5kw Victron inverter powering a 120vAC household system. Originally we were not going to have air conditioning…but a summer of me building the house changed my mind quickly. So the next summer (2020)…we had an older standalone upright AC unit that we pressed into service. Mistake! Terribly inefficient, power hog, loud enough to make conversation uncomfortable, and didn’t get the house below 80 degrees.


The issues/problems that we faced were:

  1. Not enough AC power for a regular whole house AC system.
  2. Only 120vAC power.
  3. 915sq’ of living space in 4 rooms (master bedroom, spare room, bathroom, & great room that includes a kitchen).
  4. Not enough available wall space for a split unit.

Bottom line…we had little other choice than a window unit. But they are notorious for being anything but energy efficient as well as being limited in total square footage vs BTU…not to mention noisy. As I said…few options…limited selection…yuck. So into research mode I went.

I found inverter technology as an alternative to standard air conditioner technology. So what is this inverter technology? Basically is converts incoming AC power into DC power. Then it regulates that DC power to the unit through a modulation process. Meaning…it only uses the bare minimum power required at the time for the temperature setting vs room temperature. And since DC power is more efficient on electric motors and compressors you get longer life out of them as well. The result in power savings is around 35%.

And as an added benefit I found a unit that is 9 times quieter than traditional AC units. Yeah, quiet as a library. Nice!

Now it was time for a trial…we decided to try it out on our 224sq’ master bedroom…after all a decent night sleep with AC is worth a whole lot!

We purchased a “Midea 8,000 BTU U-Shaped Smart Inverter Window Air Conditioner” for our trial run. It was rated to cool 350sq’ giving us a 40% margin…meaning that the AC unit should be able to 100% cool the room running at 60% capacity. We bought it from Amazon for $389 (tax included).

It was very easy to install, very quiet, super energy efficient, and froze us out 🙂 We considered it a success in every way. It was even quiet enough to allow me to sleep uninterrupted, and that is rare for me. So we bought the second unit a month later. This time we bought a 12,000 BTU unit (rated for 550sq’) for the great room / kitchen which is 460sq’… for $465.

It was a very nice summer & fall and the solar system could handle the power load with no issues. We even ran it into the night till 10:30 a couple times…still over 80% on our batteries.

This year when I put them back into service I placed the 12,000 BTU unit in the great room again but a different window that was protected and shaded. The 8,000 BTU unit went into our spare room which opens into the hall that opens into the bathroom, the master bedroom, and the great room. So far we are super pleased with the AC cooling power set-up we now have. And we don’t even have to run the AC’s after sunset…if that long.

Why not put the AC unit back in the master bedroom? Well, it was in my window the summer before so no cool breezes for me at night. This year…ahhhhhhhhh…cool summer night breezes every night through an open window.

We do have ceiling fans in the master bedroom and the great room / kitchen that keeps the cool air moving. I contribute that to the master bedroom staying at a very comfortable temperature all day.  We usually keep the great room / kitchen set at 71 degrees and the spare room set at 67 degrees. This keeps the whole house very cool and comfortable.

The maximum AC power draw on the 8,000 BTU unit is 8.75 amps and the 12,000 BTU unit comes in at 12 amps. However, when I look at the user screen on the solar system computer I rarely see them drawing more than about 8 – 12 amps total combined. So realistically, if I have them both running, they are drawing no more than 21 – 30 amps off the batteries at any one time. Considering that the PVs are producing 50 – 70 amps during the day…I am getting free AC and still charging the batteries.

I love these AC units! They are super energy efficient and very, very quiet. If you have a solar system and no AC but you want AC…these are the units for you! If you currently use grid power and have older energy inefficient window AC units…you might want to consider upgrading to these units.

Unit information:

  • ULTRA QUIET – The Midea U Smart Inverter AC unit is 9 times quieter than traditional units. The U-shape design uses your window to blocks noise outside and the high efficiency Inverter system warrants ultra low noise and vibration. This design allows for extremely quiet operation as low as 42 dBA – almost as quiet as a library – so you can get a restful night’s sleep or binge your favorite shows undisturbed.
  • MORE THAN 35% ENERGY SAVINGS – With the advanced DC Inverter technology, Midea U achieves over 35% energy savings compared to other traditional units, and it’s the first window AC to obtain the ENERGY STAR Most Efficient 2022 Certification. You may also get exclusive benefits from your local energy distributor.
  • FLEXIBLE WINDOW OPENING – Midea U-shaped design allows your window to open, bringing fresh air into your home anytime and allowing you to maintain more of your view even when the unit is installed. The Anti-Theft Mechanism locks the closed window for added security
  • SMART CONTROL – The Midea U Smart Inverter Air Conditioner is Wi-Fi enabled and can be controlled from anywhere through the cloud using the MideaAir app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant.
  • ROBUST INSTALLATION – Install the included quick-snap bracket, set the unit on the bracket, and secure the sidearms. After that, you are all done and ready to enjoy. Available for single-hung or double-hung windows with size: 22″-36″, minimal height at 13.75″.

For the 8,000 BTU, 350sq’ unit < click here >

For the 12,000 BTU, 550sq’ unit < click here >



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Our Solar Well Pump System

OK, let’s talk water, solar power, splicing, planning, plan changes, and gasoline prices…

Back when we bought our place in 2016 we were lucky enough to buy a piece of property that already had a well on it. After we bought the place we had the well tested…all was good. We also had them pull the pump at the same time, we wanted to put in a new pump, pipe, etc. Little did I know how much we would eventually change it.

I knew a guy who owned a plumping supply house that specialized in wells, pumps, etc. so I thought he was the logical choice to talk to. After a few minutes of discussion I found out he lived kinda off-grid and knew a lot about off-grid well systems and such. I explained our situation to him, including our usage projections, budget, my skills/experience, and asked him for his recommendation.

He laid it out in very economical terms; 1) 120v AC 1/2hp pump, 2) 10/3 w/ground submersible wire, 3) QB control box, 4) circuit breaker box, 5) connection box with outlet, 6) 3000watt generator, 7) 1” Yellow Bimodal MDPE (Medium Density Polyethylene) Gas Pipe. That was the pump set-up, still had to get it from the wellhead to the house.

The system to move the water from the wellhead to the house was a separate operation and I was a little unclear how it would work out. I had to clarify the house side first and figure out how much storage capacity, redundancy, and reserve would be adequate. I wanted a 2500gal storage tank and choked at the price tag. While on multiple visits to a local plumbing supply house I kept seeing a storage tank sitting in their yard. It was 1100gal and really high quality (Snyder Industries). I eventually bought it for $500 out the door…a real steal. Today you would pay nearly $1,400 for the tank…then shipping charges on top of that.

Next I designed our utility room (100sqft addition on the rear of the house) which would contain the filter system. I also decided I wanted a 330gal reserve tank in the utility room as well.

I measured it out and it was almost 900’ from the wellhead to the house…at the same altitude/elevation. My pump guy said the well pump he recommended would have no issues moving the water from the wellhead to the house since there was no gain in head (no additional height to pump water above the wellhead). But, he did recommend that I use 1-1/4” – 1-1/2” pipe to move the water from the wellhead to the house (lowers the pressure and increases the GPM flow rate). I bought 750’ of 1-1/4” Yellow Bimodal MDPE (Medium Density Polyethylene) gas pipe that had been marked way down due to some minor nicks. The nicks meant any government agency would no longer purchase the pipe…it was considered “damaged” but perfectly suitable for moving water.

I found a good location for the storage tank that sits about 15’ above the house, and that gives me about 7.5psi going into the house…helps prime the house pressure pump. I ran just about 725’ of the 1-1/4” MDPE pipe underground from the wellhead to the storage tank. From the tank I ran 1-1/2” PVC underground into the utility room that houses the house system.

Our water usage required me to fill our storage tank meant I ran the generator every week during the summer and about every 2 weeks during the winter. That was about 2 gals of gasoline each time. At the old gas price it meant about $2.50 – $5 each week.

Then we changed it up a bit. Our largish backyard was nothing more than dirt, dust, or mud depending on the weather. So I wanted to plant some dry pasture grass to hold the soil in place and make it a bit more human-friendly…but not a lawn. Then my neighbor heard about my “yard project” and offered a bunch of grass seed he had in his barn that he was never going to use. Then I found about 5# of grass seed in my garage/barn. A new, more complicated project was born!

See, to get grass seed to germinate you have to keep it wet for two weeks…that means watering 2 – 3 times a day for two weeks. That is about 500 – 600 gals each watering. I was running the generator up to 4 hours a day. We were now spending about $12 – $15 per day and hauling more gas home than I wanted to. Yeah, I am a bit lazy. But it got worse…the grass started looking really good. So now it went from soil retention pasture project to a suburban backyard project requiring regular watering. Yeah, our water usage went through the roof…along with the gasoline bill.

So we have no issues with water supply…it is the largest aquifer in the country…meaning trillions and trillions of gallons…probably more. Moving it from the aquifer to the yard was a whole other story.

From the beginning I had a plan in the back of my mind to build a stand-alone solar system in the well house located at the wellhead to power the well pump. I had the solar panels, charge controller, and most of the little bits & pieces. I had a modified sine wave 3000watt inverter lined up. I just needed the batteries to put it all together. I was going to purchase 4 used 6v lead acid solar batteries from a buddy of mine that owns a solar shop/store.

I invited him to lunch and 1-1/2 hours later he had convinced me that a solar pump system was the right way to go. Easier to maintain, longer lifespan, no manual effort, etc. $3,000 later I had the pump and controller. My solar panels on hand would be plenty of power. Another $900 in wire, bits and pieces I was ready to go.

Total time to install was:

  • 1/2 day to run signal wire from the tank to the wellhead.
  • 1-1/2 days to build the array rack, paint it, and install the PVs onto the rack and wire them together in series.
  • Another 1/2 day to wire the PVs to the combiner, install ground rods, wire it all, and test everything.
  • 1 day to pull the old pump, install, wire splice the new pump into the system, and putting the pump back down the well.
  • 1/4 day testing the new pump and it failed…bad wire splice at the pump.
  • 1 day to pull the new pump, resplice the wire connection, run the pump back down the well, and test…it was a success.
  • 1/2 to install the storage tank float switch, wire it in the controller, and test the entire system…success.

Now we have an automated system that refills the storage tank when it hits 50% capacity (500gal). We don’t have to do anything manually. The old well house gets torn down. The concrete wellhead structure is 24” tall with a berm of dirt that protects it and conceals it. It is amazing!!!

The problem we had was the splice that we did at the well pump. We used a standard submersible splice kit. It didn’t work right but we thought we had compensated for it. We didn’t, and it failed.

When I did the splice again the next day I used Ace Hardware 30986 Self-Fusing Splicing Tape and then Scotch 2242 electric tape to protect from abrasion. When I did the splice I used a standard 10g yellow butt connector. Then I wrapped a layer of the 30986 tape covering the butt connector ends really well by about 2”. Then going the opposite direction I used another layer of the 30986 ensuring that I covered the ends of the first layer by 2”. Once that was done I used the 2242 in a heavy layer (2” overlap on the ends) to protect the first layers from any abrasion issues going up or down the casing. It worked just fine.

If I was to do it again I would:

  • Use a 10g butt connector.
  • Using Gardner Bender LTB-400 I would force it into the ends of the butt connector until they were full. Then I would cover the entire butt connector with LTB-400 to ensure that no part of the connector was exposed. But I would also make sure it was smooth. Let it dry and cure completely for 24 hours.
  • Then I would spray two coats of Gardner Bender LTS-400 allowing 30 minutes between coats, and then allow 24 hours for it to cure.
  • Then I would wrap two layers of Ace 30986, each going in a different direction (wrap direction). The first layer would cover the butt connector and extend 2” past the ends. The second layer would go in the opposite wrap direction and extend 2” past the ends of the first layer.
  • Finally I would use a single layer of Scotch 2242 wrapped over the entire splice, covering the ends of the splice by 2” for abrasion protection.

I absolutely love the pump and controller made by Sun Pumps!!! At their tech support was nothing short of amazing!!!  I highly suggest you look at them if you are embarking on such a product.

Next comes a schematic of my water system from ground to storage tank.

General Overview
( click to enlarge )

Wellhead Plumbing
( click to enlarge )

Power & Wiring
( click to enlarge )

Water Tank Plumbing & Wiring
( click to enlarge )

You can download a PDF of my water system by <clicking here>

Important Equipment Recommendations –

You can download Pump Installation and Operations Information PDF file

You can download Control Module Installation and Operations PDF file

Sun Pumps website <click here>

Sun Pump Dealer locator <click here>

If you have any questions please ask. And of course, as always, I would love to hear your thoughts, comments, and recommendations.

Related Articles –


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2021 Solar System Configuration

I received a couple requests for more information on the solar system design I mentioned in two earlier posts regarding some of the equipment.

So I have attached a PDF file that shows the design in detail, the reasoning for the equipment, and how it all works together.

Let me know if you have any other questions.

<click here to view/download the solar system PDF file>

Send me your thoughts, ideas, comments, questions, and concerns…



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TRAP: FNS LifePo4 3U & 5U Solar Batteries

This is a continuation of my post yesterday about Growatt SPF inverter/chargers. Why? They have the same Chinese parent company (FNS) and share a common problem.

So let me start off with a compliment to the company and what they are trying to accomplish. As I understand it FNS was a battery company located in China. They then bought an inverter manufacturer also located in China. I think that is a great concept…a single company that makes the inverter/charger side of a solar system and also the batteries. Makes perfect sense…the system is better suited to work together, the components are compatible, and the inverter/charger is able to communicate with the LifePo4 battery BMS (battery management system) making it more efficient.

Last summer when a neighbor had to upgrade his solar system he asked me to handle it for him. No problem, I like helping neighbors and I do pretty decently with solar systems. Yes, he saw my system that I built and had confidence in me I could build him a good system as well.

In the market place today, and yesterday, there has always been great charge controllers and inverters. I am partial to Victron. The problem for several years now has been reliable, decent quality, lithium batteries that are priced affordably. In 2019 I started that quest for good LifePo4 batteries that I could afford…that is a story for another day. For my neighbor I had no idea what brand of batteries would fit the requirements; reliable, decent quality, and affordable. Off to visit my buddy who owns a solar company.

He had just brought on a new line of equipment…FNS. He explained the FNS inverter/charger and battery relationship. Sounded right…and they met the system requirements and they were very affordable.

I put together a plan for a 6kw, 240vAC, 400Ah, 4.8kw of PVs system that also included an FNS battery cabinet that is really sweet. PVs went up, and I started tearing out the old system. Installed the new system with all new wiring, lightening protection, etc. Then fired it up…problems right off the bat with the batteries. The FNS 3U batteries would simply not function. Two days and 5 phone calls to the battery company later we found out there was a problem with the battery’s BMS software. Took the batteries in to the technician…one battery failed to update, burned another one out.

Another couple of days worth of phone calls with the US office, then phone calls and emails with the techs & managers in China. They had to rewrite the battery BMS software, download it to the US, and then the tech here loaded it into the battery. It worked. But there was still a problem with the batteries talking with the inverter. A week later the software was available to download into the inverter. It worked.

However, about the time you think it is a sunny day once again…ah, no. The batteries were still not performing up to standards…low full charge voltage and discrepancy between the battery charge indicator lights, the actual voltage reading, and the tech spec.

The low full charge voltage problem was explained after about a month from the first purchase…it was a 15 cell battery not an industry standard 16 cell battery. And since each cell is 3.2v, missing a cell was the discrepancy in voltage. And for along time no one in the supply chain knew it was a 15 vs 16 cell battery…and that difference also explained the competitive price point. No one in the company (FNS) was ever able to explain the discrepancy between the battery charge indicator lights, the actual voltage reading, and the tech spec.

AT the time the local dealer assured me they would stand behind the batteries, but, in the subsequent months they have also discontinued selling that line of batteries.

So the FNS 3U & 5U LifePo4 batteries are a “DO NOT BUY!” if you are looking for a trouble-free, industry standard 16-cell LifePo4 battery for your solar system. If you are tech savvy or have a solid working relationship with, and warranty from, your system installation company then they are a decent alternative.

I wouldn’t install them in my system based on what I know and the fact that there are better alternatives out there.

Related Articles –



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TRAP: Growatt Inverter/Charge Controller

The Growatt SPF series of inverters has problems…serious problems if you don’t know how to fix them. The inverter unit also contains an integrated MPPT charge controller built in. And the unit has a great price point for 6kw/240vAC inverter. It can also handle 80a of PV input. Appears to be a perfect choice for off-grid operations on a budget.

But, I have personally installed one of these units for a friend and experienced problems. Later I found out there are known problems with these units, the SPF series. They will sometimes appear to overload within their 6kw/240vAC capacity and simply go off-line. They have also been known to have their integrated charge controller go off-line, without warning, which runs the battery bank down shutting down the system.

Fortunately there appears to be software/firmware upgrades that can remedy these problems. It did on the installation that I accomplished…but it took us time and interaction with the manufacturer.

So be pretty savvy yourself and know how to upgrade the firmware and software…and know how to modify the unit’s settings correctly. Or if someone installed your system for you, make sure they are aware of the problems and know the “fixes” to make. Or, buy a system that isn’t engineered and manufactured in China.

So the unit is usable and like I said…a great price point for the features. Just be aware of the problems. Know what you are getting yourself into.

And of course…one more thing. The Growatt units are marketed in the USA by a company called Growatt USA. It is owned by the parent company located in China, although run in the US by leadership in California. The person in charge in the USA is a nice lady but she lacks technical knowledge. And the lead for US marketing is an Australian who is a nice guy, has technical knowledge, but is lacking ability to resolve/troubleshoot issues relating to the units themselves.

The parent company also owns a lithium battery manufacturing company called FNS.The idea was to have an inverter unit (with integrated MPPT charge controller) and lithium batteries that work and communicate together. Great idea! But they fell short in getting all the bugs worked out before they went to market. More on the batteries tomorrow.

This is a cautionary “Trap” warning…not a “Do Not Buy!” warning. More like “Buy At Your Own Risk & be Prepared to Work Through It” warning.

Related Articles –


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AIMS Power (PWRI60012S) 600W Pure Sine Power Inverter

note: article first appear April 2016

I hope by now you are familiar with the “power box” that I built. Some might call it a “solar generator” but it is way more than that. Since this power inverter review will tie directly into the power box, it might be a good idea to read the power box article first.

< Click here to read about the power box >

The whole concept of this “power” thing is to make sure that during emergencies, disasters, and grid-down that you have enough electrical power to accomplish your essential mission(s). For me, “essential mission” is basically recharging batteries to keep my radios operational and my tactical lights running. No, it is not to keep the air conditioning running or the freezer on. I don’t consider those two things as essential.

The mission statement –

“To provide sufficient ‘clean’ power to run, or charge batteries for, essential sensitive electronic gear that requires 120vAC power.”

Requirements & Restrictions –

  • Must be “clean power” to not damage or destroy sensitive electronic equipment.
  • Must be able to handle surges of at least 50 – 150% of the unit’s continuous rating.

As always I did considerable amount of research before I identified the units I would be testing. This Aims unit really looked good from all the details and information I could gather. I also tried something different this time. I contacted the company and told them I was doing an evaluation of power inverter units under emergency preparedness conditions. I asked them if they would like their unit included. I figured if they didn’t think their unit could handle the testing and subsequent review that they would back away. They didn’t…the unit tested showed up about two weeks later. I think that showed considerable confidence in their products.

When I pulled the unit out of the box the first thing I noticed is the unit outer housing is a giant heat sink. That is important to see that their engineers understand the necessity to move heat away from any power inverter. Then I turned it over a couple of times in my hands and saw that the unit was very well built with attention to detail. After all these years I can often tell by the “feel” of a product if it is junk or quality. The Aims unit felt like quality in every aspect. My testing proved me right.

The + / – battery connections on the back of the unit weren’t Anderson Powerpoles and that was kind of a drag, but I didn’t really expect them to have Powerpoles as a connection option. The unit’s connectors were solid and the connection faces were exactly flush with each other which will ensure a good connection with the “eyes” on the power wires coming from the 12vDC power supply. The plan is I will make my own using #10 wire and high-quality ring connectors, along with in-line fuses. Yes, the unit has fuses built in, but I would rather protect the unit well before the unit’s fuses themselves.

The fan located on the rear of the unit is meant to keep the unit cool when under load. However, it isn’t always running. The fan will start up when the unit is outputting about 100w. That is a nice feature because the fan does take power to run…precious battery power. If you are using a low consumption device that doesn’t exceed 100w then you are draining additional power with the fan running. But the fan is there when you need it. Sweet! They designed this thing to be very stingy using power from the battery.

I also noticed that there is separate ground connection. No, not the negative terminal connection, but an actual ground connection. I am no electrical engineer but I know enough that grounding an inverter is a good piece of advice. Having the inverter unit itself grounded (PE) provides protection from a number of “faults” and protects your electrical devices running off the inverter.

Basic Hook-Up Diagram –

Dang…there are so many things I could talk about in regards to this unit. There are so many features and protections that I am almost overwhelmed with how much to write about. Let me give some technical details from their website about this unit first…

Features –

  • 600W continuous power, 1200w surge
  • Pure sine wave
  • USB Port, 5v, 1a
  • Dual 120vAC receptacles (3-prong)
  • On/off rocker switch
  • Over temperature indicator
  • Overload protection via fuses and automatic shutdown
  • Low battery voltage warning/shutdown
  • Alligator clips included on 28″ of heavy-duty wire
  • High input voltage protection with automatic shutdown
  • Over load indicator
  • Short circuit protection
  • Load based fan – only runs when an inverter senses a load over 100w

Technical Specifications –

  • Continuous output power: 600 Watts
  • Surge power capability (peak power): 1200 Watts
  • DC input / operating voltage: 9.7 to 15 Volts
  • Output voltage: 120 Volts AC
  • Output voltage regulation: +/- 3%
  • Output wave form: pure sine wave
  • Output frequency: 60 Hz
  • Battery low voltage shutdown: 10.0 +/- 0.5 Volts
  • Low battery voltage warning/shutdown
  • No load power consumption: < .6amps DC
  • DC amps: 50
  • AC amps: 5
  • Full load efficiency: 90%
  • 1/3 load efficiency: >85%
  • No load minimum operating temperature: 50 degrees
  • Full load maximum operating temperature: 145 degrees F (automatic shutdown)
  • AC Output Sockets: dual Type 2 -3 prong and single USB Output
  • High input voltage protection: 15V
  • Low input voltage shutdown: 10V
  • Internal blade fuse protection
  • Product size (L x W x H): 9″ x 6″ x 3″
  • Weight: Unit: 4.4

Voltage Handling –

  • When your battery drops to about 10 – 10.4vDC a low voltage alarm will sound. No, it won’t blow your ear out, it is subtle but clearly noticeable.
  • When the voltage then drops to 9.7 – 10vDC the unit will automatically shut down. This feature operates exactly as a LVD (Low Voltage Disconnect), and that saves your battery from over-discharging and being damaged. Actually, 9.7vDC is really a pretty low level to draw your battery down to. You don’t want to do it very many times.
  • The unit also has a shutdown feature for the high end as well, 17vDC. But, if you are running 17vDC into the unit you have much bigger problems with your 12vDC battery powered system. However, the transformer that I use in “My Power Box” can push out up to 16vDC (variable control). So, it is nice to see that the Aims inverter can handle up to that voltage rating. I guess the real purpose high-voltage shutdown feature is to prevent the unit being damaged by being accidentally hooked up to a 24vDC battery system.

Operating Environment –

  • This unit is not meant to run in all conditions and locations that exposes it to certain environmental elements. This unit is meant to be protected from those elements.
  • The temperature should be between 32 – 104°F. Yup, that means not below freezing and not desert SW June daytime direct sun temps. I am not understanding why the low temperature restriction and I have contacted Aims for an explanation. Aims AnswerThe reason it is rated at 32F is  there is silica and ceramic based components inside when those components run below freezing and warm up during operating they tend to crack and will cause failure.  Another point is that you lose efficiency, a lot of efficiency, at these temps, everything is working harder.  
  • The unit has to be ventilated under all circumstances. This is a piece of electronic equipment that generates heat, you have to be able to move that heat away from the unit. That just means to allow enough room around the unit to make sure air can circulate.

Uses –

Here is what Aims is listing as potential uses for this inverter –

  • Laptops,
  • YVs,
  • DVD players,
  • CPAP machines,
  • Satellite TV systems,
  • O2 concentrators and generators,
  • Mobile office set ups,
  • Fast charging power tool batteries (like my Ryobi 18v power tool chargers)
  • Other small hand held electronics

I am using the Aims power inverter for charging my handheld radios, electronic gear (computer), small appliances, etc. From DC power generated either from my truck or from my power box. For heavier AC loads (i.e. power tools) I use my Honda i2000EU generator. Aims does have much larger pure sine wave inverter units, up to 4000watts. I would love to test one of those higher wattage units but I just don’t have that requirement at this time.

NOTE: One thing I really want to point out…Customer Service. When dealing with Aims I was really impressed with their fast responses to any question I had. They appear to be very solid people, dedicated to both their products and their customers.

For my potential needs this unit exceeds all my expectations! I am giving this sweet little unit a “Buy!

600 watt version



1000 watt version



1500 watt version








2000 watt version


3000 watt version



4000 watt version










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