What are the key installation requirements for the flue?
Biomass requires a twin-wall insulated stainless steel flue to maintain high exhaust temperatures and prevent condensation (creosote buildup). If the property is in a
Smoke Control Area, you must install a DEFRA-exempt appliance to comply with the
Clean Air Act.How do I specify the correct buffer tank (accumulator) size?
In 2026, the industry standard for a clean-burning installation is 40–50 litres of buffer storage per kW of boiler output. This larger volume allows the boiler to complete full burn cycles, reducing soot buildup and protecting the ignition elements from "short-cycling."
How should I pitch the ROI to a hesitant client?
Focus on "Energy Security." Highlight that while the £5,000 BUS grant covers the initial hump, the real value is in the low cost per kWh. In 2026, wood pellets remain significantly cheaper and more stable than heating oil (Kerosene) or LPG, typically saving rural homeowners hundreds of pounds annually on fuel bills.