boiler

It didn’t have central air conditioning, and it was heated by an old-fashioned boiler.

Qualifying expenses are energy-efficient exterior doors and windows, solar panels, heat pumps, water heaters, and biomass stoves and boilers.

The sheriff court hearing into the incident heard that the boilers at the school had been tested in 2018 - with an earlier service taking place in 2017.

Turning down your combi boiler's flow temperature can help the system run more efficiently, and save money.

Huge pipes carried steam created in enormous belowdecks boilers, which supplied heat to the officers’ cabins and the crew’s living quarters.