The new heat pumps build on these efforts, as they’re expected to save over 8,000 tonnes of CO 2 e over the lifetime of the heating systems.
Mae’r pympiau gwres newydd yn adeiladu ar yr ymdrechion hyn, gan y disgwylir iddynt arbed dros 8,000 tunnell o CO 2 e dros oes y systemau gwresogi.