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See email with details and video links below photo!!!
From: Petter Fladsrud
To: Todd Harrison
Hi Todd,
First, great site! As far as I know the only page dedicated to homemade pool heaters ;)
Thought you might wanted to put out my heater on the page, link to a forum thread on my homemade diesel pool heater:
http://x.havuz.org/viewtopic.php?f=47&t=11151
videos at:
http://youtu.be/FJNSLRS5EG8
http://youtu.be/m3KorYz0ob4
It's inspired by the diesel pool heater Steve Jones is building now. Just let me know and I will send pictures and description.
Petter
----reply----
From: Todd Harrison
To: Petter Fladsrud
Petter,
Sure, Send photos and your story and I will put them up with a link to your video.
Todd
----reply----
From: Petter Fladsrud
To: Todd Harrison
Hi Todd,
I don't have many build pictures; will take more when we make it bigger. Let me know if you want more information :)
Hi! Thought I would share some information about my homemade pool heater. The heater is build to heat up a 12ft x 32in, 1,828 gal pool which we are going to use on New Years Eve. The party is up in the mountains of Norway and we can expect temperatures as low as -4 Fahrenheit. I did the same thing in March this year, but with a pool half the size and a 25kw Webasto diesel heater, but with a bigger pool and lower temperatures I needed a bigger pool heater.
Got my hands on an oil burner, the big kind normally mounted on furnaces, with a max output of 330kw or 1,100,000 BTU. But with the nozzles mounted now, it makes about 200kw. Made a custom burn chamber out of old water heater tanks (got them for free and they are stainless steel). Basic idea is one small tank which the burner burns into, welded inside a bigger tank, water flows between the tanks. Inside the small tank is a "burner tube" with a smaller diameter then the tank so the flame has to reach the end, goes around the burner tube and out the exhaust in the bottom. The exhaust goes trough the "water jacket" and out.
It's not a very effective design, heated about 90gal from 41 to 120 Fahrenheit in 5 min with an 8,000 liter/hour submersible pump. The exhaust gets red hot :P But I think it will do the job!
We did bring the heater and pool to the cabin on New Years Eve and it was a success!:) Despite the fact that everything that could go wrong did go wrong! First the pool broke, the lining didn't cope with the cold so we got a 1 meter crack during assembly, fixed that with a big tarp instead. Had some problems with the water pump, got a 6,5 hp 3 inch pump for the heater, 60,000 liter/hour. Then we accidently got water in the burner control, so we had to mount plugs to everything that needed power on the burner to work, and then plug them in the right order to ignite and stuff. And then the diesel filter clogged up, so had to remove that, but then the wiring to the electrodes had melted. So we tossed a firework igniter into the chamber and made it fire again :) After all that it took 2,5 hours to heat about 6000 liter from 1 to 45 Celsius. At the best it only took 2,5 min to heat 1 Celsius :D. The pump is too small tough, we had a 2-3 Celsius heat difference on the in and outtake on the burner. And the burner "kettle" itself is way too small; we started melting stuff in the diesel burner, so we are going to make it maybe twice the size. It got a lot of potential! Used between 50 to 60 liter diesel from 1 to 45 Celsius with an outside temperature of -5. The pool held a temperature of 18 the next day, used 30 liter to heat it up again. Added some pictures of the whole thing, it was a lot of effort to dig the hole for the pool, a good 4-5 feet of snow. It wasn't a lot of snow under the pool when we packed it all up;)
Petter