Free Underfloor Heating Pipe Calculator: Making Underfloor heating system good is to do loop sizing and layout correct. we have Underfloor Heating Pipe Calculator its free and its excel file its easy to use for engineers and contractors. you just put some information like room size and what temperature you want on floor and what type pipe you use and it give you answers like how much pipe you need and how many loops you need and how far apart pipes should be and how much heat it will make. it do all calculations for you so you get flow rate and pressure drop and manifold stuff in few seconds so you can make pipe schedule and pump head without using formulas or guessing.
Key Features
Instant Thermal & Hydraulic Calculations
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Automatic Loop Sizing: Calculates total pipe length and loop count for each heating zone based on room area and ΔT.
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Heat Output Estimates: Uses user‑entered flow and return temperatures plus pipe spacing to compute W/m².
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Flow Rate & Pressure Drop: Determines per‑loop flow requirements (L/min) and pressure‑drop (kPa) for accurate pump selection.
Manifold & Pump Recommendations
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Circuit Grouping: Suggests optimal grouping of loops onto manifold ports to balance flow and temperature.
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Pump‑Head Sizing: Recommends total system head and flow capacity to match selected circulator or pump model.
Material & Construction Support
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Pipe Material Options: PEX‑A, PEX‑B, PE‑RT selections with corresponding flow‑characteristics.
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Construction Types: Wall‑slab or screed installations, with preset insulation & concrete thickness defaults.
Benefits for Engineers & Installers
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Error Reduction: Eliminates manual spreadsheet formulas, minimizing the risk of calculation mistakes.
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Time Savings: Reduces design cycles from hours to minutes, freeing you to focus on system integration.
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Procurement Accuracy: Generates precise pipe‑quantities and component schedules for cost control.
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Standards Compliance: Automatically applies BS EN 1264 and ASHRAE performance checks to validate your design.
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