Boiler Sizing Calculator
Calculate the optimal boiler size for your home based on property size, insulation, number of radiators, and heating requirements.
Step 1: Property Details
Understanding Property Size
Larger properties require more powerful boilers to adequately heat all rooms. Measure the total floor area of all rooms you want to heat, excluding unheated spaces like garages.
Step 2: Heating Requirements
About Insulation Levels
Well-insulated homes retain heat better and require smaller boilers. Modern insulation can reduce boiler size requirements by 20-30% compared to poorly insulated properties.
Boiler Sizing Results
Recommended Boiler Size
Boiler Size Comparison
| Property Type | Size Range | Boiler Size | Radiators | Annual Cost |
|---|
Heating Requirements Analysis
Boiler Sizing Formula
Total kW = (Property Area × Heat Loss Factor) + Hot Water Demand
The boiler size is calculated by determining your property’s heat loss (based on size and insulation) and adding the hot water requirements for your household size and usage patterns.
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