"We live in a large, 200 to 300 year old, Grade ll listed stone house near Stroud. We have a 30 year old mains gas boiler and our carbon footprint is bigger than I like. I asked Cotswold Energy Group to look at what we could do using an air source heat pump. Robin and …
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If you have an old, inefficient burner on an oil boiler, though, you may want to replace the whole burner. A flame retention burner will block airflow up the chimney when the unit isn't running, saving up to 20 percent on fuel costs at a cost of about $500, says the DOE.
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