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Ground Source Heat Pump Case Study

GSHP

NIBE S1155 GSHP Heats All-Electric Home

Product

Ground Source Heat Pump | NIBE S1155

Installer

Better Planet

On a secluded Surrey plot with its own woodland, lake, and former farmhouse, the owners set out to replace the old dwelling with a super-efficient, architect-designed family home. Key requirements were - 

All-electric, low-carbon heating and hot water.

Unobtrusive technology that complemented the home’s minimalist aesthetic (including a new basement level).

Consistently comfortable indoor temperatures and fresh air, with the lowest possible running costs.

Better Planet delivered a fully integrated, renewable HVAC package:

ComponentDetails
Heat pumpNIBE S1155-25 ground-source heat pump with boreholes.
Thermal storage500 L domestic hot-water cylinder + buffer tank for stable low-temperature space heating.
DistributionUnderfloor heating (UFH) on all levels, supplying gentle, even warmth.
VentilationMechanical-ventilation with heat-recovery (MVHR) unit delivering fresh, filtered air while reclaiming up to 90 % of exhaust heat.

Product Success 


  • Ambient comfort year-round – UFH paired with inverter GSHP keeps indoor temperatures stable without hot/cold swings; MVHR eliminates stuffiness.
  • Exceptionally low bills – High seasonal performance factor (≈4.0) and continuous heat-recovery ventilation cut electricity use, delighting the client with minimal running costs.
  • Future-proof sustainability – All-electric system positions the property for rising grid-carbon reductions and potential smart-tariff optimisation.



Visit the Better Planet Website