Hi there - you've left me in suspense... was the fibropool able to maintain temps in the 80's? I'm thinking of this exact use case too, but I'm not sure if the FH120 is going to be big enough for a 17,000 gallon inground pool. Cheers!

@diy-solar-guy

Жыл бұрын

I’m sorry, did not mean till leave you hanging. I would get the larger unit, I thought they had one that was 50,000 btu’s or more. Better to be more than not enough. I can maintain my temp with pool cover with FH120 but not be able to raise temp. Just too cold at night. Still in 50’s and 40’s at night here. My pool is in the shade until May. I would say for 17,000 gallon pool you would need something 50,000 btu or more and if you do not run at night you will drop in temp. If your pool is in full sun all day that helps so much with a pool cover as well. I have a electric 127,000 btu pool heat pump I will be able to run as soon as I get a new charge controller where I can run 11 to 22 - 250 watt panels wired in series. That beast uses over 5000 watts when running but can heat my pool 2-3 degrees per hour. I can easily make up for over night temp drop within 2 hours of running next day. Until night time temp is in the 60’s consistently I will not heat pool at this point. But will be able too next year most of the winter.

Where are you located? Your temperatures seem pretty close to overnight up here in Reno, Nevada.

@diy-solar-guy

Жыл бұрын

I’m the southwest corner of Phoenix AZ. Below sea level.

I need some advice… can’t get much help so far.. I’m thinking about getting a 95,000 btu electric pool heat pump… wonder how big of a solar system I would need to install to cover the cost of running this?

@diy-solar-guy

Жыл бұрын

My electric pool heater is 127,000 btu heat pump. It uses between 6000-8000 watts or 140-180 dc amps. My 12kw Growatt only has an output of 100 amps, that is why I added the EG4 charge controller to charge battery, I actually set my load to 120 amps to run off solar. You can set the 12kw Growatt up to 180 amps between input and charge amps used. It is really hard to keep this unit running at 180 dc amps so I usually run for about 4-6 hours a day with a pool thermal cover. You can not keep the heat in overnight unless you use a pool thermal cover. I have 48-250 watt poly panels connecting to the Growatt 12kw low frequency inverter. That is 12,000 watts but I can probably only get around 8500-9000 watts output with that 48 solar panels. I had to put a soft start on the pool heater heat pump to reduce the inrush starting amps from 180 to 40-56 amps. You will need a low frequency inverter to start up a 95,000 btu pool heater. The Growatt 12 kw inverter is the only inverter I have found so far to start up that beast of a heat pump pool heater I have. You will need to see what the inrush starting amps on that 95,000 btu pool heater is, I would guess maybe 150 dc amps. I would say the 12 kw Growatt I have with the 48-250 watt panels would be a good choice, you can get a refurbished unit from signature solar right now for around $1600 plus shipping. I would definitely think you would need around 10,000 to 12,000 watts in solar panels. My suggestion to you is see if you can find a low frequency inverter that will take 500 ESV volt solar panel input, you will make your life a lot easier when you start wiring up your solar array. But you still might need a 5500 watt output, 500v dc solar panel input, 20 amp dc amp input, 100 amp dc output EG4 charge controller to help keep your 95,000 pool heater running once you start it up. Hope this helps. Your solar array will need to have no shading throughout the day to keep heater running and cloudy days will probably shut down pool heater if you do not have at least a 48v m, 10KWh battery bank. Let me know if you need more info. Hope you have a wonderful and blessed day.

@sirmatt6143

Жыл бұрын

I was actually thinking about letting a solar company install them on the roof and hook them into my meter

@diy-solar-guy

Жыл бұрын

When I run my electric pool heater on the grid power it cost $6-$8 a day in the winter and $10-$15 a day in peak season from April through October out here in AZ. My pool heaters also can cool the water as well when the water gets into the 90’s. The most they would be able to fit on my roof when I looked into grid solar was only 5000 watts. My roof has a lot of angles and very little straight area to fit more than that. That would have cost me $28,000 with the solar company keeping all the federal and state rebates. My electric bill would have also increase by 50 percent to discourage me from going solar. My electric bill is $1100 a year with off grid solar. If I would have put solar on my roof, my electric bill would have been around $3500 to $4500 a year. My system has cost me around $16,000 so far but has paid itself off already in 3 1/2 years with saving on electric bill and rebates. Keep that in mind when you get a price to install solar on your roof. My highest electric bill is $162 in the peak summer. Without off grid solar, my electric bill would be over $700 for that same month. My house is in the 60 degree temp range in summer, when I was with no off grid solar, my house was set at 85 degrees during the day and 79 degrees at night and my electric bill for summer averaged over $500 a month for 6-7 months. I am so much more comfortable running my ac systems all day for free with solar and not having to use ac at night because house is super cooled during the day.

I already know what you will say but this video is the closest I've got to an answer. 20k gallon pool in the south with a solar cover outside Temps 70s 80s with the solar cover maintaining the pool at 75 degrees consistently you think that little think can get me at least 82 degrees? I rarely lose heat at night due to the cover I just need a bit more heat till may 28th or so.

@diy-solar-guy

Жыл бұрын

For a 20,000 gallon pool you would need the the 55,000 btu pool heater, I have the 17,000 btu pool heater but my pool is around 12,000 gallons. Go to fibro pools.com and see what they have. These little pool heaters work better on above ground pools.

@milleniumann28

Жыл бұрын

@@diy-solar-guy yea I knew you would say that get a bigger unit.

@milleniumann28

Жыл бұрын

So I purchased the unit and I finally hit 84 today. Took a week running non stop but I'm pleased. With my 20k gallons I wouldn't call it a pool heater but it is great at maintaining heat over night. I know for sure I could never get into the 80's 3 weeks ago with the same outside temperature so it definitely did help me get over that hump.

@diy-solar-guy

Жыл бұрын

That is wonderful to hear. Glad it is working for you. The solar cover is what keeps heat in but the unit will slowly increase temp if you can keep heat in overnight. But I know my unit will not keep up very well when it is in the 40’s and 50’s overnight. Once we hit the 60’s overnight it really started to climb 3-6 degrees during the day with pool cover on and only lost 1-2 degrees overnight with pool solar cover on. Not real expensive to run since the pool heater uses around 1200-1500 watts per hour. Enjoy your swimming!