Heat Pumps in Falmouth & Penryn: Harbour Town Heating 2026

The Falmouth & Penryn Heating Market

Falmouth and Penryn have a diverse heat pump market. The area's mild maritime climate — Falmouth rarely sees frost and January average temperatures stay above 6°C — means heat pumps operate extremely efficiently throughout winter, typically achieving COP of 3.5–4.0. Falmouth's population of around 22,000 is boosted by University of Exeter students and significant numbers of second homeowners and holiday let operators.

Property Types & Heat Pump Suitability

• Georgian and Victorian townhouses: Typically 3–4 floors, stone construction. Heat loss calculations often require more radiator upgrading, but the BUS grant makes costs manageable.
• Victorian terraces (Killigrew, Trescobeas): Solid stone or brick, 70–100m². Usually need 3–6 radiator upgrades. See our radiator guide.
• Post-war semi-detached: Good insulation potential — often the easiest conversions.
• Detached properties (Maenporth, Mawnan Smith): Excellent candidates. Often oil-heated and eligible for full £7,500 BUS grant.

BUS Grant Eligibility

A large proportion of Falmouth and Penryn properties are off the mains gas grid — particularly older parts of town, Flushing, Mylor, and all rural locations. Properties currently heated by oil, LPG, or electric storage heaters are eligible for the £7,500 BUS grant. See our BUS grant guide for full eligibility criteria.

Period Properties: What You Need to Know

• Solid stone walls cannot be cavity-filled. A slightly larger heat pump unit compensates for higher heat loss.
• Radiator upgrades are almost always needed in Georgian and Victorian properties — typically 3–6 radiators replaced with modern low-temperature units.
• Listed buildings require listed building consent. Falmouth has a number of listed buildings in its conservation area — we advise during the free survey.

See our guide: Do Heat Pumps Work in Older Properties?

Installation Costs After BUS Grant

• Victorian terrace with radiator upgrades: £6,000–£9,000 after grant
• Semi-detached with modern radiators: £4,500–£6,500 after grant
• Detached oil-heated property: £5,000–£8,000 after grant

Combining with solar panels and a smart tariff can reduce running costs by a further 20–30%. See our solar + heat pump combined guide.

Book a Free Survey

We cover Falmouth, Penryn, Flushing, Mylor, Mylor Bridge, Mawnan Smith, and surrounding areas. Book your free Falmouth heat pump survey today.