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bradford white combicor

big willy
big willy Member Posts: 92
figure on getting a price here just wishfull thinking. I wish Cal Steam would build a online qouteing system like all the other suppliers but I am guessing you are about right with the cost. I will call the city plumbing inspection department on monday. Thanks for the input


  • big willy
    big willy Member Posts: 92
    bradford white combicor

    I want to use a 75 gal power vent combi cor bradford white in a one bedroom flat in san fransisco. They dont have the flame arester system on the 75 gallon models. Is this ok? I walked the job with the GC. and I have only one option for a flue and thats over the deck out the back of the flat. Three sides are on property line and the front is pushed into hillside. Its the bottom flat in a seven story building. I need to get the bid out monday any idea on cost for one of these. They were going to ge with forced air but the coustomer changed his mind on wed. I walked it on Fri. they are starting demo in monday.
  • Mad Dog!!!!!!!!
    Mad Dog!!!!!!!! Member Posts: 157
    We don't talk prices here but............................

    You can expect to pay about double the cost of a standard gas water heater. Check with your local inspector on the flame arrestor. Mad Dog
  • hr
    hr Member Posts: 6,106
    Actually, in y area

    The Combi 2 is about 5 times the cost of a standard tank. Still much less than a mod con/ indirect package or a condensing type WH with external plate HX for the radiant.

    Having the HX coil INSIDE the tank makes more sense,as opposed to a dual circ, external FP HX.

    It is a unique product if DHW and hydronic loads are required from a 24" diameter footprint. It is in a class of it's own.

    The improvements to the coil material and diameter, have made it a sellable product for me once again.

    hot rod

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  • Dave Stroman
    Dave Stroman Member Posts: 765

    I would be interested to hear about those improvements.

    Dave in Denver
    Dave Stroman
  • ALH_4
    ALH_4 Member Posts: 1,790

    The old heat exchanger was a horribly long 1/2" diameter coil with an incredible amount of head loss. I think there was something like 60ft of pressure drop at 5gpm. The new coil is 1-1/4", and much shorter.

  • Alan(OnVacationInOregon)Forbes
    It would take a long time

    to convince me to buy another Combi-Cor; we've had too many problems with compromised heat exchangers (HX); we've got a 4-plex on Fell St. across from the Panhandle where at least 2 of the 4 Combi-Cor's have failed and I don't know what the heating contractor did to hoodwink the inspector since San Francisco does not allow single-wall HX.

    Baxi Luna has a decent combi boiler that is available with a double-wall HX, but DHW production is limited to below 3 gpm.

    For radiant areas under 1,000 [], I prefer to use a water heater with an external HX. We just finished a job on Lombard near Columbus where we used a double-wall, flat plate HX (Swep) for about 1,000 [] of Thermalboard; heat source is a Rinnai "on-demand" water heater. Tony Amable (the boiler inspector) finaled the job; no problems.
  • Nron_13
    Nron_13 Member Posts: 164
    1 steps

    Do your heat loss on the place first and see what is required for heating and domestic water volume before you decide on equipment , then talk to your suppliers and use equipmet that you can service , It will save a lot of trouble

  • hot_rod
    hot_rod Member Posts: 22,147
    Combi 2 ghost pic

    Dave, here is a look inside. Much larger steel, glass coated coil. Up top in the hottest portion nof the tank. Gas, LP, and oil fired versions. Several sizes and thru the wall versions.

    hot rod
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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