LOW-CARBON HEATING
Heat-Pump Quotation Checklist
A heat pump is a designed heating system, not a like-for-like box replacement. The quotation should connect the property’s heat loss, flow temperature, emitters, hot water and controls to a named unit.
Reviewed 10 August 2026 · Independent household decision support
Design evidence
- Room-by-room heat-loss calculation
- Design outdoor temperature and target indoor temperatures
- Required flow temperature
- Radiator, underfloor and pipework changes
- Hot-water cylinder capacity and recovery assumptions
Equipment and performance
- Exact heat-pump model and output at design conditions
- Electrical supply requirements
- Noise and siting information
- Seasonal-performance assumption and calculation basis
- Controls, zoning and commissioning
Scope and price
- Removal of existing equipment
- Groundworks or external base
- Electrical and plumbing changes
- Planning or permitted-development responsibilities
- Grant treatment and customer contribution
Independent context
The CMA publishes consumer guidance for green heating purchases, and the government provides a heat-pump suitability service. Eligibility and grant values can change, so verify current terms before signing.
Use this guide
Keep important answers in writing and make sure they appear in the final contract.
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QuoteGuardian content is general information—not financial, legal or engineering advice.
Related guidance
- Government heat-pump suitability service — External specialist resource
- CMA green-heating consumer guide — External specialist resource
- PowerGuardian household energy guidance — External specialist resource