I have my pellet stove now need something to heat the water! Hot water is killing me here!

Steveo Posted By Steveo, Jul 23, 2008 at 10:40 PM

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  1. Steveo

    Steveo
    Member

    Jun 6, 2008
    246
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    Loc:
    Maine
    I have not tried one but I heard they are one of the best with a lifetime warranty.
     
  2. Redox

    Redox
    Minister of Fire

    Feb 23, 2008
    1,099
    0
    Loc:
    Burbs of B'more, MD, Hon!
    Some oil burners use a post purge cycle that keeps the fans running for a minute to cool things off and keep the nozzle from coking up. I suspect that most boilers with a tankless coil don't have this feature and it shouldn't be a problem. If you want to check, watch the burner through a normal cycle and see if the flame goes out as soon as the motor stops. If you have a draft fan or sidewall kit, you probably want to let it finish its cycle. Putting a switch in series with the aquastat to shut it down would be a better idea.

    Chris
     
  3. MikePelletier

    MikePelletier
    Member

    Feb 26, 2008
    40
    1
    Loc:
    Wilmot, NH
    I got rid of my super store that ran off my oil boiler and went with a Rinnai R75. I installed it myself and
    the only problem I ran into turned out to be due to a clogged mixing valve. It's been absolutely awesome.
     
  4. Catfishjack

    Catfishjack
    Member

    Sep 11, 2008
    86
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    Loc:
    Northern NY
    I use a Kerosene fired Toyotomi and I have for over 10 years. It is hot water on demand, 5 gallon holding tank, direct vent /no chimney. For a family of 4, even our outside faucets have a hot water blend, I estimate I use about 100 gallons of kerosene a year and electricity usage is so minimal I don't even calculate it into the cost of hot water...
     
  5. MikePelletier

    MikePelletier
    Member

    Feb 26, 2008
    40
    1
    Loc:
    Wilmot, NH
    Hi Jack.

    If it's "on demand", what's the holding tank for? Is it hot water storage or
    just to let the cold water warm up to room temp? It sounds pretty decent.

    Mike
     
  6. Catfishjack

    Catfishjack
    Member

    Sep 11, 2008
    86
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    Loc:
    Northern NY
    it always keeps 5 gallon of water "hot" for instant use. We cannot outrun this unit.
     
  7. MikePelletier

    MikePelletier
    Member

    Feb 26, 2008
    40
    1
    Loc:
    Wilmot, NH
    That's really interesting. I'm not really equipped for Kerosene, but
    it sounds like it would be efficient. The Rinnai is also direct vent. I
    like that it's really quiet. I thought about going with the DHW insert
    coil on the PB105 pellet boiler but I'd have to keep it on all summer.

    Mike
     
  8. M1sterM

    M1sterM
    Member

    Aug 21, 2008
    148
    2
    Loc:
    Northcountry
    I have a Rinnai...I think it's an R73 or something like that. I agree, it's awesome. I've never regretted the investment, and our electric bill has gone down over $30-40 a month. It's propane, and we're using about 8-10 gallons a month for hot water, but I have 2 kids in cloth diapers (one almost 2, and the other 1 month old), so we're doing tons of laundry.
     
  9. MikePelletier

    MikePelletier
    Member

    Feb 26, 2008
    40
    1
    Loc:
    Wilmot, NH
    When I ran into the problem with the mixing valve, I found a website that had a slew of suggestions
    and troubleshooting techniques. From what I could see, the biggest problem people had with it was
    the requirement that the flow is at least .5 GPM to stay running. That's not so cool for water saving
    washers, but I don't think hot water is essential for cleaning clothes these days.
     
  10. Smudge88

    Smudge88
    Member

    Sep 24, 2008
    104
    0
    Loc:
    Cedar Knolls, N.J.
    What did this cost you...I can do the install myself...Interesting!
     
  11. peirhead

    peirhead
    Feeling the Heat

    Aug 8, 2008
    405
    29
    Loc:
    PEI Canada
    This summer i put in a solar water pre-heater (basically garden hose on the roof) which brought the city water from 50 deg to around 80 deg, then through the coil on my oil boiler. After this winter (hopefully with a new Quad Castile) I hope to take the coil out of the furnace and install one of the GE 12 yr electric DHW heaters. I plan to leave the oil boiler on but turned down to around 90 - 100 deg instead of 140-160... That way i'll use very little oil but still keep it from condensing water on the cold jacket.
     
  12. mtalea

    mtalea
    Feeling the Heat

    Dec 14, 2005
    349
    1
    Loc:
    Bristol, Connecticut
    I installed an electric energy smart hot water heater.Its made by whirlpool @lowes..my electic bill went up about 20-25 dollars a month,I keep the temperture on it down so no one can take a real hot shower...set at about 110 degrees,and no one complains about it and it never runs out of hot water..there are 5 of us in this house....good luck
     
  13. mtalea

    mtalea
    Feeling the Heat

    Dec 14, 2005
    349
    1
    Loc:
    Bristol, Connecticut
    I installed an electric energy smart hot water heater.Its made by whirlpool @lowes..my electric bill went up about 20-25 dollars a month,I keep the temperature on it down so no one can take a real hot shower...set at about 110 degrees,and no one complains about it and it never runs out of hot water..there are 5 of us in this house....good luck
     
  14. control1

    control1
    Member

    Aug 24, 2008
    114
    0
    Loc:
    bucks co pa
    I HAD THE SAME ISSUE I WAS BURNING A GALLON A DAY JUST FOR HOT WATER I HAD A PLUMBER COME IN AND HE PUT IN A 40 GALLON ELECTRIC WATER HEATER NOW I CAN HEAT WITH ELEC OR OIL BY TURNING A VALVE I CHOSE TO HEAT THE WATER WITH ELEC . MY BILL WENT FROM APPROX 130 TO 179 PER MONTH STILL CHEAPER THAN HEATING WITH OIL. I DID NOT GO WITH THE ON DEMAND HEATER AS I HAVE HEARD A LOT OF ISSUES WITH THEM.
     
  15. alexdrozd

    alexdrozd
    Member

    Jun 19, 2008
    76
    0
    Loc:
    New Haven County,Ct
    The problem I have heard with "On Demand" Heaters is this. They all use a small diameter coil in order to heat the water that passes thru it. This small diameter coil starts to plug up over time and you get a reduced flow and eventually, no flow, depending on your water conditions. You either have to give it an acid bath to open it up again, if that is still legal, or replace the coil entirely. Any truth to this?
     
  16. MCPO

    MCPO
    Minister of Fire

    May 1, 2008
    2,282
    137
    Loc:
    western Ma , close to NY state border
    My inquiries into the on demand electric heaters exposed the reality that I can expect to replace it every 6-8 yrs . This conclusion was drawn from a few different plumbers who were more familiar with them.
    No thanks!
     
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