![]() The steady-state efficiency (about 80% for non-condensing gas fired water heaters) would be closer, independent of what it's EF test number is. The EF of a hot water heater is not a legitimate statement of it's AFUE when used as a combi-heater using a hydro-air coil. Regardless, any tips in this area would be welcomed. I assume this is hard to answer given that a hydronic heat source shares the water with other appliances. The next question is how do I find the economic balance point with a hybrid Heat Pump / Hydronic heating system? A lot of calculators out there don't seem to be able to compare the cost hydronic heating to running a heat pump. Although a water heater with an auxiliary line is more expensive ~ $2000 ~ it seems like having a Heat Pump with electric as my back up is a bad idea unless I have one that can perform is some extremely low temperatures: ). who knows how long gas will continue to be cheap. the responses on this forum are supportive, 2. It looks like a dual fuel system will be a better buy in the long haul (1. Okay, I tried to do some additional homework. If you have any advice from in respect to suggested energy savings / cost savings, I would be incredibly grateful! Calculating future energy bills is an important part of our decision.) ![]() Our average gas / water bill is $150 to $190, and our electric bill can range from $50 to $110. (FYI, we live in Richmond, VA, so we have a few days out of the year that drop to the 20s, but it’s very seldom. The challenge is, I’m having a hard time learning about the efficiency of my Aquatherm / Water Heater, so I don’t know how to compare it to the HSPF rating of a heat pump. In comparison, I was given $6000 estimate to replace our existing Aquatherm air handler with a 14 SEER air conditioner.) I’ve considered a mini-split set up, but unfortunately, the cost estimates are too high for our two-story, five-room home. (One estimate was about $7000 for a 16 SEER / 9 HSPF heat pump that would use our hydronic heat as a back up system. The outdoor air conditioner is leaking freon and I’m not sure how much longer we’ll be able to recharge it.Īs I make plans for replacement in the future, a lot of HVAC companies are suggesting we go with a 2.5 ton Heat Pump for our 1400 square foot home. For the summer time, we have an outdoor air conditioner (12 years old). My Aquatherm air-handler (22 yrs old) is paired with an axillary line on my gas fueled water heater (10 years old) to provide heat in my home.
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