Turn Off Pilot Lights

Our home currently has three gas appliances: the stove, the ducted heating, and the continuous hot water system. We’re focusing on other projects around the house first, which means that we haven’t got the budget available to replace these with electric versions.

The easiest – and cheapest – way that we could find to make an immediate difference here was to turn off the pilot light for the hot water system. There is a flame that burns continually, and the system increases the flow of gas as water is being used, so for 24 hours each day we were using gas.

When we looked at our water usage, leaving the hot water system turned on didn’t make much sense. There are four people living in the house, and between us we might spend at most half an hour using the water to shower and wash the dishes. That means for more than 23 hours each day we were burning gas for no point whatsoever.

Gas water heater

Our system is inside on the laundry wall, so we don’t have to go outside to use it. There is a button to press to turn it off and you have to press a whopping two buttons to turn it back on. The final button allows it to heat up to the set temperature. It’s a remarkably simple system and takes only a few seconds to set.

Beyond the bigger climate picture and our gas bill, turning off the pilot light is important because this is carbon that was being emitted inside our house. Carbon levels above 1,000 parts per million (ppm) can have adverse effects on human health, ranging from headaches and difficulty concentrating in the short term to changes in bone density and body metabolism in the long term. That might sound like a high number – outside levels for September were 408.55 ppm at the Mauna Loa observatory – but levels can easily pass 1,000 ppm inside closed environments such as offices, classrooms and homes.

If you’re playing along at home…

…do you have any pilot lights that you can turn off when they aren’t in use? Please share in the comments below ways that you have reduced passive fossil fuel use around your home.

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