Cylinder heat loss
How much heat a World Heat cylinder loses standing, per day, in watts and per year.
World Heat Cylinders · 0161 343 8610 · sales@whcylinders.co.uk
Cylinder heat loss
Inputs
- Cylinder
- SuperFlow Direct Standard, 90DSSFLOW (90 L)
Indicative result
Standing heat loss
- Declared standing loss
- 0.96 kWh/24h
- 40.0 W continuous
- Per year
- 350 kWh
- at the declared rate, all year
Indicative only. This result must be confirmed with World Heat before specification. Send it to our technical sales team with the form below, or email sales@whcylinders.co.uk (your inputs and result are filled in), or call 0161 343 8610.
Assumptions used
- Source
- World Heat product data (the figures on the domestic cylinder quick reference), as declared per model.
- Temperatures
- The figure is shown as declared for each model, not adjusted to a storage or room temperature.
- Per year
- Declared kWh/24h × 365, with the cylinder held at temperature all year.
Still to come: data we need to add
- Insulation per model (material, thickness and thermal conductivity), so insulation can be an input.
The ranges this tool recommends from: Unvented cylinders and Heat pump cylinders.
Rather talk it through? Our technical sales team sizes cylinders every day: 0161 343 8610. See all our design tools.
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