Home water heating is responsible for about 1 ton of carbon emissions each year. If that cylinder in your utility room is over 10 years old, this might be a good time to replace it ... with a heat-pump water heater.

Heat-pump water heaters look the same, but they are a key way to break our dependence on methane "natural " gas in the home. They provide the energy savings of 7 solar panels at one-sixth the price. They also are easy to install: New-generation units from Rheem and A.O. Smith can plug into a regular 120-volt electrical outlet,

Thanks to the Inflation Reduction Act, you can save 30% of the cost, up to $2,000 per year. through tax rebates or point-of-sale rebates. To find out how much you could save, consult this online calculator.