
2025-07-04 22:43:49
Determining our future savings might be a bit difficult. At our old house I knew the cost of filling an oil tank a couple of times a year. That cost went to zero and my Hydro bill went up. Based on the savings I had a 7.5 year ROI on my upfront geothermal install cost. Now I'm in a new home (10 days today) with only monthly averages for Hydro and Enbridge provided by the real estate listing. But that should be enough data to give me an approximate estimate.