Pipe Sizer

Terms of use

The tools and materials provided from this page have been designed (on the whole) for engineers and are not neccessarily designed for end user operation.

They may require engineering judgment and personal verification of provided data. Although I have worked hard and made these tools as accurate and functional as possible, I provide no warranty on their accuracy or suitability.

All tools used from this page are done so at the user's own risk.

Your ΔT would be expected to be around 20°C for a condensing boiler or 5°C for a heat pump. However you should check with the manufacturer of the appliance for further details.

The specific heat capacity is based on the heat transfer medium being deployed. For plain water, we'd expect around 4.2 kJ per °K per kg of fluid. However, mix in Glycol at 25% dilution and this could drop to 3.8 kJ/K/kg. Once again, you may need to check with manufacturers about how the SHC may be affected.

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Updated 01 January 2025 in engineer tools.

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