When we bought our house in 2009, it came with a 20 year old, oil
fueled furnace. Although the furnace was old, it ran just fine and did a good job at heating the house.
After we moved in, we had other priorities in mind – painting the house, buying appliances, replacing the roof etc. Since it was working fine, purchasing a new furnace was lower down on our “To Do” list – so we didn’t get around to replacing it until 2011.
The oil furnace came with some downfalls. We noticed that it was costly to fill the oil tank, and we worried about the potential for environmental damage (and the huge repair bill) if the tank should ever spring a leak. Plus, we had to check the oil level regularly and phone the oil company when the tank was getting low – being careful to never run out of oil!
In September 2011 we decided to bite the bullet and replace the furnace. It cost us $4,800 after tax for the removal of the old furnace and oil tank, an extension of the gas line for the new furnace, installation of a new 95% high efficiency gas furnace, and installation of a new fancy shmancy thermostat.
We knew the gas furnace would be cheaper to run, but we didn’t know how much cheaper it would be. I pulled up our banking records to see how much we paid for furnace oil last year. Since our hot water tank is also gas powered, I calculated the difference in gas bills between last winter and this winter in order to figure out how much gas the new furnace was using.
The results are amazing! The savings is downright incredible…
*** Please note that our gas meter is read every 2nd month – so every other month we are billed based on an estimate. The gas company was basing their estimates on the amount of gas we used last year (and didn’t take into account the gas used by the new furnace)… hence the high/low/high/low pattern for gas bills this year. ***
Yes, that’s right – it cost us nearly $1,500 to heat our house with oil last winter… and just under $300 to heat the house with gas this winter. The huge savings means that our furnace will pay for itself in just a few short years.
Plus, we now have the convenience of not having to think about filling the oil tank, not having to pass the annual oil tank inspection, and not having to worry about potential leaks. Plus, our new furnace uses only one filter (the oil furnace used two) – so we save in that department as well!
I was so shocked at how little we paid this year that I went ahead and compared our electricity bills as well (wondering if the furnace was using a lot of hydro instead?) I discovered that our hydro bills totaled about $100 less this year compared to last (even though the rates went up!)… so perhaps the furnace uses less hydro too?
We’ve learned a few lessons from this experience. First and foremost – we’ll never again have an oil furnace. If we buy a house with an oil furnace, replacing it will be at the TOP of our “to do” list. Second, sometimes it pays (literally) to replace an old, outdated, inefficient piece of equipment with a new, more efficient model. Yes, it may cost a lot upfront, but the long term savings can be huge.























