Outdoor Wood Furnace Info
All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: willieG on January 05, 2009, 04:13:26 PM
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why do we all seem to want to add more storage or siphon our tanks full (i was like this when i started) when what our OWB with a good plate exchanger or pool heater type exchanger (like i built) is actually an "ON DEMAND HEATER"
i shut my valves last night isolating my hot water tank from my exchanger and took a nice long relaxing shower..i never ran out of hot water, allthough i did have to adjust the tap a couple of times (i suppose as the temp of the OWB drew down from it high temp to its low) but the water never became uncomfortably cool
now my exchanger is a 50 foot coil of copper pipe inside a 2 foot long pipe but i am going to offer a guess that a (remember this is a guess) a 30 plate exchanger would liklley keep up
has any one else just bypassed their tank and tried the exchanger they have by it's self??
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I haven't yet hooked up to my water heater and that's the next step for me. I never thought of bypassing the big tank and using it "on demand" style... Gotta pic of your setup so I can see more of what you're talking about...?
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here is my exchanger if it works out and you can see it it is likley in the photo ,,sideways
the top should be the 2two 3/4 feed and return from the boiler pipes and "to the house 1/2 inch domestic line
the 1/2 line by itself is the feed to the exchager from the house supply
also there is a drain plug
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What did it cost you to build this exchanger Willie?
The thin plate exchanger that I have was about $800 5 years ago and I'm pretty sure it would heat on deman too!
:thumbup:
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What did it cost you to build this exchanger Willie?
The thin plate exchanger that I have was about $800 5 years ago and I'm pretty sure it would heat on deman too!
:thumbup:
i got the pipe for free at work so i guess when i built it copper was about 1 dollar per foot and i have a 50 foot coil inside and a few fittings so less than a hundred bucks and this is year 8 for it
i am scrounging around now for parts for a new one...i am thinking of having one on standby (i have every part on standby..pump...blower..solenoid and this summer i may start a new furnace for my other farm, but who knows maybe i will put it on standby as well (lol)