Ok I have a daka indoor wood furnace , works awesome, 2500 sq feet ,72 degrees all the time , went through 11 face cords last year , Now I want to set it up to preheat my water supply to my hot water tank , if i was to put coils in the heat chamber ( not the fire box ) it will heat up the water but will it build up preasure ? city water so not a closed system , I am a fabricator by trade so making it not a problem , come on put your 2 cents in , THANKS FOR YOUR EXPERTISE
heating house hot water with wood furnace
- Thread starter toolhawk
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Hi i very well could build up pressure but to be on the safe side just put a T&P valve (like what is on your water heater that way it would blow of at 212deg. or 150psi and than you would never have to worry about blowing it up.
wdchuck
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I too have a DAKA wood furnace, and one of the options is a domestic hot water heater that runs through the hot air portion of the furnace. Check out the website, many add-ons to get the most out of the furnace.
Would like to know how your installation went. DIY or help from a pro.
Would like to know how your installation went. DIY or help from a pro.
wdchuck
Addicted to ArboristSite
An inquiry to DAKA about the capacity of their option, maintaining how many gpm @ a given temperature? Maybe get a feel for why they designed what they are offering, if they'll share that info, anyway. Too big and you may start stealing heat from your main purpose, just getting a 30* boost up from the 50* grouind temp will be a big help on your water heating costs.
Just brainstorming here, you know how heat tape works?, well what if you ran a tight coil of tubing around the supply pipe to the hot-water heater, and hat that coil on a loop running through the hot air portion of the furnace, with a pressure relief valve for safety?. Or is that too putzy?,
I'm a little tired already tonight.
Just brainstorming here, you know how heat tape works?, well what if you ran a tight coil of tubing around the supply pipe to the hot-water heater, and hat that coil on a loop running through the hot air portion of the furnace, with a pressure relief valve for safety?. Or is that too putzy?,
I'm a little tired already tonight.
very good
thats very simular to my original thought , your right a 30 degree rise would be great , now u have 80 - 90 degree water entering your tank , 1) not cooling your hot supply to fast and recovery would be cut down to nothing ,
thats very simular to my original thought , your right a 30 degree rise would be great , now u have 80 - 90 degree water entering your tank , 1) not cooling your hot supply to fast and recovery would be cut down to nothing ,
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