I've been looking into these brands of tankless water heaters......I know there are more and am open to consider other brands. A little background: Right now I have a two year old electric water heater. I'm having trouble figuring out how much this thing is costing me. I'm assuming it's anywhere between $35 -$55/month. My electric bill fluctuates between $125 and $175 a month (winter months being more). My last bill was $150 and I used 988 KWH. That comes out to $0.15/KWH. I heat with wood in the basement to warm the floors and a Rinnai Direct Vent heater in the main living area. So, an LP gas ($1.80/gal) unit would be easy to get going. (Although I have seen those SETS electric tankless. They claim a 98% efficiency).
Rinnai's website has a little flash program that allows you go calculate savings. Over 20 years, with my set up, I'll be saving $21,000. Of course, that's best case scenario and assumes a number of variables remain constant. But even if it's half that it would be worth it. '
Takagi brand seems a bit cheaper (Rinnai installed is $2000 with $500 of that being labor).....have yet to get a Takagi installation quote. Although, I could install these things myself......but that voids the warranty....correct? ROI seems to even out at the 2-3 year mark according to their numbers.
Some, however, are sticking with their electric water heaters.
I guess I'm wondering what anyone who has gone through this process thinks? It seems to be a logical choice to go tankless, but I've read of those who were very sorry.
And on the Rinnai vs. Takagi comparison.......what do you think of that..........
Thanks for your time and any opinions.