From oil to heat pump, no
regrets.
York · 3-bed cottage · 2 people
Heat pump
Kova Plus
48%
Lower annual bill
£1,120
Pounds saved in year one
2.8 t
CO₂ avoided per year
6 mo
Payback on Kova Plus
BEFORE
Monthly bill
£196
Heating
Oil boiler, 2011
Tariff
Standard variable
Peak usage
Heating oil every winter
AFTER KOVA
Monthly bill
£102
Mitsubishi heat pump
Tariff
Cosy
Peak usage
7% of kWh at 4-7pm
The setup
Ruth and Sam Carter swapped a ten-year-old oil boiler for a Mitsubishi Ecodan in their stone cottage.
Kova learned how quickly the thick walls hold heat and now warms the cottage in the cheap hours before dawn.
“The cottage has never been this warm, and we’ve stopped ordering oil.” - Ruth Carter
What made the difference
Pre-heating on cheap power and a heat-pump tariff cut their heating bill nearly in half.
