Free hot water!

Free hot water!

PostBy: philthy On: Mon Jan 27, 2014 9:35 pm

After much research I finally installed a dhw coil in the Hitzer. My set-up is well water into 50 gal holding tank, thru coil, back to top of tank. The holding tank is then plumbed into a 66 gal hot water heater about 20' away.

I will say it was slow to heat but seems to be doing fine now. I guess heating cold well water takes a lot of energy… I haven't turned off the electric water heater as of yet but I doubt it's working very hard.

Sorry about the sideways pics. :mad:
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philthy
 
Hand Fed Coal Furnace: Hitzer
Stove/Furnace Make: Hitzer
Stove/Furnace Model: 82-fa

Re: Free hot water!

PostBy: grumpy On: Mon Jan 27, 2014 9:39 pm

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Re: Free hot water!

PostBy: ShawninNY On: Mon Jan 27, 2014 10:11 pm

Thermosyphon or pump ? Nice job
ShawninNY
 
Stove/Furnace Make: Waterford/penn royal in garage
Stove/Furnace Model: 1994 Erin


Re: Free hot water!

PostBy: Hambden Bob On: Mon Jan 27, 2014 10:14 pm

I'll be damned!
Hambden Bob
 
Hot Air Coal Stoker Stove: Harman 1998 Magnum Stoker
Coal Size/Type: Rice-A-Roni !

Re: Free hot water!

PostBy: philthy On: Mon Jan 27, 2014 10:15 pm

Its thermosypon. Didn't like the idea of losing power and the water just sitting in the coil. Wanted it to be as simple as possible.

Thanks to all who let me borrow their knowledge. :D
philthy
 
Hand Fed Coal Furnace: Hitzer
Stove/Furnace Make: Hitzer
Stove/Furnace Model: 82-fa

Re: Free hot water!

PostBy: Hambden Bob On: Mon Jan 27, 2014 10:38 pm

Bath Time,Philthy !! :doh: :dancing:
Hambden Bob
 
Hot Air Coal Stoker Stove: Harman 1998 Magnum Stoker
Coal Size/Type: Rice-A-Roni !

Re: Free hot water!

PostBy: Lightning On: Tue Jan 28, 2014 4:43 am

Nice work.. My hot water coil set up is the same. Two tanks in series. I leave the electric tank powered but its not working very hard, like you said since the water is preheated by the furnace. Saves me $300 in electric across the 6 months I burn coal. That's a free ton + some!! Did you install any valves so that you can bypass the furnace in the summer? If cold water is left running thru the coil in the summer it cold be very bad for it.. If not, you can always reroute the plumbing in the spring and worry about it for next burning season. 8-)

Here's my set up if you didn't see it..

Hot Water Coil Project
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: Free hot water!

PostBy: Sting On: Tue Jan 28, 2014 8:02 am

No such thing as "FREE" hot water

The energy transported into the storage of the DHW tank is simply NOT going into the dwelling that your heating
Sting
 
Other Heating: BurnHAM=NG-gas

Re: Free hot water!

PostBy: coalnewbie On: Tue Jan 28, 2014 8:07 am

No such thing as "FREE" hot water

The energy transported into the storage of the DHW tank is simply NOT going into the dwelling that your heating
Sting

Other Heating: BurnHAM=NG-gas


More wisdom from cheesetown. I need ALL the BTUs I can get for heating. DHW is a small add on at this point that I am content to pay the propane bill for. That oxygen dihydride stuff in the heating system is just more problems than I need.

AHAHAHAHAHAHA, I slay myself
Last edited by coalnewbie on Tue Jan 28, 2014 8:09 am, edited 1 time in total.
coalnewbie
 
Hot Air Coal Stoker Stove: LL AnthraKing 180K, Pocono110K,KStokr 90K, DVC
Hand Fed Coal Stove: Hitzer 50-93,
Baseburners & Antiques: Invader 2 Wings Best, Glenwood #8 + Herald 116x
Coal Size/Type: Rice, Chestnut
Other Heating: Heating Oil CH, Toyotomi OM 22

Re: Free hot water!

PostBy: Lightning On: Tue Jan 28, 2014 8:09 am

Sting, of course that's true lol but for the little bit of extra coal required in a hand fed it's as close to free as you get. .. :)
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: Free hot water!

PostBy: Lightning On: Tue Jan 28, 2014 8:29 am

Not only that, but since the coil is additional heat transfer surface area, it could be soaking up some of the heat that would've been lost up the stack without it.
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: Free hot water!

PostBy: waldo lemieux On: Tue Jan 28, 2014 8:41 am

Hambden Bob wrote:Bath Time,Philthy !! :doh: :dancing:


OMG :rofl: :rofl: :rofl:
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: Free hot water!

PostBy: Wanna Bee On: Tue Jan 28, 2014 8:57 am

Not going to take away from any of the effort and engineering you put into the system. But... Cinder blocks have no strength laying down. You have a thousand pounds of water on top of them. Chances are you won't have any issues. If down the road you drain down that tank I'd fix those blocks.

Carry on!
Wanna Bee
 
Stove/Furnace Make: Grander Stove Co.
Stove/Furnace Model: Royal Bride

Re: Free hot water!

PostBy: Wanna Bee On: Tue Jan 28, 2014 8:57 am

Double post
Last edited by Wanna Bee on Tue Jan 28, 2014 8:58 am, edited 1 time in total.
Wanna Bee
 
Stove/Furnace Make: Grander Stove Co.
Stove/Furnace Model: Royal Bride

Re: Free hot water!

PostBy: Sting On: Tue Jan 28, 2014 8:58 am

Flu gas siphon - or Up the stack loss - is still necessary function of energy transfer from the magic black rock [ or burning NG :) ] and if energy is scrubbed from that source - well the stack may/might not function as well as it could - or flu gas may begin to condense

It Depends

yes this is a very frugal DHW production method and bravo to all who undertake -- but lets not kid ourselves about it being "FREE"

Kind Regards
Sting
Sting
 
Other Heating: BurnHAM=NG-gas