DHW -- Oil vs Electric, getting closer to real numbers.

BradH70 Posted By BradH70, Nov 20, 2012 at 8:16 AM

  1. SmokeyTheBear

    Minister of Fire

    Nov 10, 2008
    Standish, ME
    For the 12 month period ending 03/11/2013 5383 kWh
  2. moey

    Minister of Fire

    Jul 12, 2012
    Southern Maine
    Some states are running rebates concurrently with the Fed rebate on hybrid water heaters. For Maine at least its $600 off fed and state. I got a regular one because I wanted a 80 gallon one but if you were in the market for a 40 or 50 gallon one you could find hybrid ones for ~$500 after the rebates.
  3. WES999

    Minister of Fire

    Jan 12, 2008
    Mass north of Boston
    I posted some of this before but here is an update. About 3 1/2 years ago I replaced the oil fired tank less
    DHW heater that was costing about $100/mo to run!!! with a 80 gal electric ( got it off CL for $50).
    I installed an hour meter to record the time the water heater on time. As of today the heater has run 925 hrs,
    in 43.3 months, comes out to $15/mo. To be fair I have a solar pre-heater that runs in the summer.

    BTW when I first installed the water heater I used Teflon tape, I had to take it all apart:mad: and use the PTFE paste,
    I will never use tape again. I have a drain pan under the water heater that runs in to the sump pit, just in case.
    I added 3 1/2 FG insulation and covered it with reflective bubble insulation, looks like a silver bullet.
    Probably paid for itself in less 4 months.

    View attachment 98209

    Attached Files:

  4. BradH70

    Feeling the Heat

    Feb 13, 2011
    South West NH
    So, this may be a little premature but I still decided to post the info.

    I installed my electric DHW heater on March 22. I just received my first electric bill with the addition of the electric heater and the bill went up by about $35 from the previous month. This is much better then the close to $100/month it was costing in oil to heat the water.
    Redbarn and woodgeek like this.

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