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1

Home Made / Re: Swimming pool heater design

« on: July 13, 2014, 06:52:02 PM »

Just finished the door and added fire brick, had fire burning for about 2 hours still kinda smokey, measured stack temp with infared gun, was about 100 degrees F, does that seem too low maybe?

2

Home Made / Re: Swimming pool heater design

« on: July 11, 2014, 07:12:20 PM »

Yeah, I didn't have time to cut the hinges, my cnc plasma table was down with a stripped sprocket. What kind of brick is fire brick and where can I get it?

3

Home Made / Re: Swimming pool heater design

« on: July 11, 2014, 08:25:47 AM »

Well, it's up and running, took the pool from 18 c to 35c in 3 hours, outlet tempetures reached 55 degrees. Needless to say it works amazing, except it's really smoky, not sure if it's because there are a few small leaks in the exchanger or if it's because it sweats so much or what the deal is.

4

Home Made / Re: Swimming pool heater design

« on: June 28, 2014, 08:12:08 AM »

I haven't decided yet if I will or not, im not sure if it will be necessary. If need be then I will, the plan is just to run it as hard as possible till the pool reaches a reasonable temperature then just let it burn down. Guess I'll see when I get it all up and running.

5

Home Made / Re: Swimming pool heater design

« on: June 27, 2014, 06:36:35 PM »

An update to the build, almost finished, stainless is very tough to work with, but its almost done!

6

Home Made / Re: Swimming pool heater design

« on: June 04, 2014, 10:50:17 PM »

Finally pulling the trigger and buying the stainless steel, I have a few questions though,

Ive attached a drawing of the design,

My firebox will be 28"w x 38l x 38d
total area of approx. 23 cubic feet.

1st question is, How large of a chimney should I require for this size burner box?
2nd, Should the intake be the same size?
3rd How many BTU will this burner yield?

Thanks in advance!

7

Home Made / Re: Swimming pool heater design

« on: March 17, 2014, 07:24:58 AM »

Thanks a lot for the input, the whole boiler willl be built from stainless so I won't need a heat exchanger, im thinking my fire box will be about 3x3x3, and the exchanger tubes will be 1.5 inch tubing. Hopefully 4 runs should do it for the exchanger. I'm hoping this new design will bring my 8000 liter pool from 15ish degrees to 25 in a few hours, I have a natural gas boiler with a heat exchanger that can maintain the tempeture, it just isn't big enuf to overcome the loss from atmosphere if it's too cold

8

Home Made / Swimming pool heater design

« on: March 01, 2014, 09:28:35 AM »

Hello,

Drew up a rough sketch of my pool heater last night at work, excuse the rough drawing, was drawing it in my spare time waiting for trucks on dozer. Anyway, Im looking for suggestions or comments, any input at all. I have a few questions aswell,

1; first off, will this design work?
2; is it possible to remove too much heat from a fire?
3; will this design burn smoky?
4; can you use a blower to extract the smoke instead of using a blower to force air through?
5; how large of a setup will I need to take a 1 inch feed of 15-20 degree water to 30-40 or more degree water?

Any comments or suggestions are appreciated !

Thanks!

9

Pools & Hot Tubs / Re: 1st attempt at wood fueled pool heater

« on: March 01, 2014, 08:37:28 AM »

Thanks for the reply, I have a design sketched up ill start a new thread in the home made section for feedback.

10

Pools & Hot Tubs / Re: 1st attempt at wood fueled pool heater

« on: February 28, 2014, 06:40:33 PM »

Sorry, those photos were from the initial install, I immediately wrapped the whole thing with roxul and I even added another loop around the chimney, like I said, it works well, I can get the water coming out almost steamy, it just doesn't have the capacity that I want mostly because the burner box is too small. As for the copper tubing with pool chemicals, Ive had it running for 3 seasons now, it runs 24/7 without any issues. My next design will be full stainless, just looking for input on design ideas.

thanks

11

Pools & Hot Tubs / 1st attempt at wood fueled pool heater

« on: February 28, 2014, 12:18:50 PM »

Hey everyone, New to this site, wish I knew about it sooner.

Just wanted to show my first shot at a wood fired pool heater, works really well, just does not have the capacity that I want. The next one I build will be all stainless steel, do you guys have any suggestions on the most efficient and least smoke producing design? I was thinking a 30"x30"x36" burner box, with a full water jacket, then a secondary smoke combustion chamber with a water jacket, then through 2" heat exchanger tubing surrounded with water. Is it better to have my smoke exit the bottom of the burner box or the top? is it possible to extract too much heat?

Thanks for your input

Scott