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Water Heater for Radiant

DaveGateway
DaveGateway Member Posts: 568
Looking for recommendations from the pros for a gas fired water heater to serve a small staple up radiant job. Required output presently is only 20k btu but I intend to expand the scope of the install in the future so I'd like to go with something that will give me 40k.

In going to a plumbing contractor I'd like to ask for specific manufacturer(s).

Comments

  • Not a water heater

    > Looking for recommendations from the pros for a

    > gas fired water heater to serve a small staple up

    > radiant job. Required output presently is only

    > 20k btu but I intend to expand the scope of the

    > install in the future so I'd like to go with

    > something that will give me 40k.

    >

    > In going to a

    > plumbing contractor I'd like to ask for specific

    > manufacturer(s).



    It's a boiler, the new Munchkin wall-mounted T-50 should be available soon; I've got two on order and they look to be the bees knees when it comes to heating small raadiant jobs.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • Not a water heater

    It's a boiler, the new Munchkin wall-mounted T-50 should be available soon; I've got two on order and they look to be the bees knees when it comes to heating small radiant jobs.

    To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"
  • harvey
    harvey Member Posts: 153
    40 gal. w.h

    For small radiant jobs it's hard to beat a water heater piped as a boiler. use a rheem heater
  • Jack_23
    Jack_23 Member Posts: 153
    I don't understand why...

    tank water heaters are allowed to be used for heating. The Nat'l standards call for a minimum efficiency of 78%. A gas water heater is about .60 EF and subject to high heat loss up the tube. Cheap to buy but is it the right thing to be doing?
  • I agree Jack

    Where do you connect the Low Water Cut Off, or the High limit to back up the operating control. Where does the rollout switch go? The blocked vent safety switch? Aren't these code on heating systems, or just frills? Are they optional in your state? If a water heater runs and doesn't vent, it satisfies before anybody dies. If a boiler runs with a blocked vent, safety devices shut it off, because heating systems run long enough to kill people in a short time. How do you defend yourself in court when a water heater used as a heating system runs with a venting problem, and runs long enough to kill people? Sure, it's cheaper. That's about all it has going for it. The customer gets a good price, the contractor gets the job, but at what price? So much for plumbers protecting the health of society. No thanks, not in my house.

    You obviously can't use one where a heating system is required to be ASME inspected by law, and expect an insurance company to cover anything that happens as a result of a heating system problem.

    I can't imagine expecting an appliance that is engineered to run 20 minutes at a time, a few times a day, to run safely for hours straight, months at a time, with minutes of off time in between.

    And then making a claim on the water heater warranty when something fails.

    Wow.

    Noel
This discussion has been closed.