Hot Water Heater Energy Savings – Round 1
Yesterday I received our first “real” gas bill since the gas hot water heater was removed (I say “real” because the previous month’s bill was an estimate, and I couldn’t use it for an accurate analysis of gas usage). For those who don’t remember, I replaced our natural gas powered hot water heater with an electric one back in February. At the time, I was concerned that I had made a mistake going from gas to electric, but I didn’t have much choice given that I would have had to go with a “power vent” natural gas model, which was not available at the time.
The new gas bill shows that we used 4.7 MCF of natural gas in March of 2009, compared to about 7.3 MCF in March of 2008. At current gas rates, this translates to about a $40 savings. Considering that this bill really covers 2 months of use (due to the previous month’s estimated bill), it comes down to about a $20/month savings.
Our electric bill with the new hot water heater went up about $17 last month. So it looks right now like I’ll be saving about $3/month, at least looking at these initial numbers.
So, it looks like I should have held out and waited to find a power vented natural gas hot water heater. The differential between the numbers is going to just get worse as soon as PA electric deregulates and the price we pay for electricity sky rockets starting next year.









