HELP Pre-Heater for Hot Water Heater

This forum is for common products and questions such as chimney installations, CO detectors, coal bin designs and a variety of other general topics that do not fit into the other forums.
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Posts: 74
Joined: Wed. Sep. 22, 2010 12:14 pm
Stove/Furnace Make: KEYSTOKER soon
Stove/Furnace Model: Koker
Location: Reading,Pa

Post Wed. Oct. 26, 2011 12:43 pm

Last winter was my first year with my Keystoker,LOVE IT, LOVE IT. Now it's time to play, having gone from a Heat pump to coal has cut my electric bill in half but I'd like to cut it more. I was thinking of clamping a coil of copper tube to the side of my Keystoer with an aluminum heat shield on the outside to preheat my well water before it goes into my electric hot water heater. Is there a downside to to this and if so what or a better way to accomplish this task? Also last winter there was a guy who posted about bringing cold air from outside to feed the intake of the stove. Does anyone know how I could find that post?

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Posts: 2379
Joined: Mon. Sep. 27, 2010 3:39 pm
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.
Location: Girardville Pa.

Post Wed. Oct. 26, 2011 12:46 pm

There is already and established thread titled

Heating DHW with a Keystoker

Type that into the search bar and happy reading.
Rev. Larry
Ashland Pa.

1 John 1:9... If we sin and we confess that sin He is faithful and just and will forgive us and cleanse us from all unrighteousness.

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Posts: 69
Joined: Fri. Nov. 20, 2009 1:13 pm
Stove/Furnace Make: Keystoker
Stove/Furnace Model: Stoker 90K
Location: Washington, NJ

Post Tue. Nov. 01, 2011 8:36 pm

Read my thread on the external coil that I made. If you have any questions please let me know..

Link Here

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Posts: 5849
Joined: Mon. Nov. 14, 2005 8:40 am
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon
Location: Cuba, NY

Post Wed. Nov. 02, 2011 5:49 am

Do a search on EXTERNAL HOT WATER Coil, been discussed and has some good pictures.

There are also kit online to mount directly on the side of you stove too.
- Dave
Hyfire I & Keystoker 90K heating an 1890 Victorian
- Amsoil Authorized T1 Certified Dealer

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Posts: 4404
Joined: Wed. Nov. 14, 2007 4:06 pm
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite
Location: Cecil County, MD

Post Wed. Nov. 02, 2011 7:52 am

a search on "outdoor combustion air" brought up a few threads on this topic...happy reading!! Basically it is just a 2" to 4" pipe coming from outside and terminating near the combustion fan. Looks like there is a thread to help calculate the size pipe.
I drive a VW TDI, heat my home & workshop with two coal stokers and have two vintage JD diesel tractors....
The EPA just loves me!!

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