BTU Calculator: Room Heater
iOS app by Shanghai Sheyuan Network Technology Co., Ltd.. Utilities · Shanghai Sheyuan Network Technology Co., Ltd.
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- 4.99 USD
- In-app purchases
- Unknown
- Version
- 1.0.4
- Listing last refreshed
- 2026-09-12
View the original store listing
Store description excerpt
Not sure how many BTUs you need to heat a room? Buying the wrong radiator wastes money and leaves you cold. This calculator estimates the heating output required for any room based on its dimensions, insulation quality, window area, and climate zone. Enter room length, width, ceiling height, insulation level, window area, and climate zone. Get required BTU output, recommended radiator sections, and kW equivalent instantly. WHAT IT CALCULATES: - Required BTU/h for the room - Heat loss through walls and windows - Number of radiator sections needed - Output in BTU and kW - Insulation and exposure adjustments KEY FEATURES: - Multiple climate zone presets - Insulation quality levels (poor to excellent) - Works completely offline - No account or login required Built for HVAC technicians, plumbers, heating contractors, and homeowners planning system upgrades.
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