# The cost of adding cooling to a heat pump

URL: https://www.vheatc.site/the-cost-of-adding-cooling-to-a-heat-pump
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Updated: 2026-05-22
Language: en-GB

The realistic cost of enabling active cooling on a Vaillant heat pump — the resistor, fan coils, controls and installation.

Adding active cooling to a Vaillant heat pump has several cost layers.
All figures below are indicative typical ranges, not quotes.

- Coding resistor: GBP 47.50, a fixed and small cost.
- Fan coil emitters: around GBP 700-1,500+ per room unit (indicative).
- Controls, drainage and installation: site-dependent — quote required.
- The resistor is the small part; the system upgrade is the larger cost.
- Whole-project cost depends on room count and site difficulty.
- Only a surveyed quote from a Vaillant-approved installer is reliable.

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