Boiler Sizing Calculator
kW output by bedrooms, radiators and hot water demand.
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This calculator provides estimates based on standard UK construction practices and British Standards where applicable. Results include typical waste allowances.
Important: These calculations are for guidance only. Always verify quantities with a qualified professional before ordering materials. Site conditions, design requirements and local building regulations may affect actual quantities needed.
TradeCalc provides free estimation tools for UK construction professionals. While we strive for accuracy, all results are approximate and should be verified by a qualified professional.
TradeCalc accepts no liability for material shortages, over-ordering, or any losses arising from the use of these calculators. Always consult relevant British Standards and Building Regulations for your specific project.
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