I installed my Harman P68 to heat the house and hopefully I will not use any oil for heat this year. I have been keeping track of how much oil I am using to heat my hot water and figured out that I use 5 gallons of oil every six days just to heat my hot water. If oil was $4.00 a gallon it is costing me about $1216.60 per year just to heat my hot water. Holy crap thats alot of money just for hot water. It is obviously costing me more since oil is more than $4.00 per gallon. So what is everyone else doing for hot water? Natural gas is not an option here in Maine for me. I thought about the Rinnai but have not read anything good about them. Maybe I should have got a pellet fired boiler. I am really considering installing the most highest efficient electric water heater I can find. Solar water is way to expensive at this point in time. I do not have a chimney so a propane water heater will need to be direct vented and they are big bucks I think. Any ideas on what I can do for hot water?