Heat Pump Case Studies: Air Source Heat Pump Replacing Storage Heaters

Property type: 3-bedroom detached bungalow in rural Wales

Product installed: 14kW air source heat pump complimented by a 4kW solar pv installation and floor heating system.

Installation date: June 2012 (heat pump), May 2012 (solar PV system)

Distribution system: Ice Energy underfloor heating throughout

Previous heating system: Electric storage heaters

In May 2012 John and Lynne Lewis replaced their expensive storage heaters with an air source heat pump, solar pv panels and an underfloor heating system from Ice Energy. The combination of their heat pump and pv system means they receive more in grants than they pay in energy costs.

What prompted you to investigate air source heat pumps?
"We were looking to be green and mean with bills with a view to future proofing towards energy bills in our retirement. Rising fuel costs were a consideration as was better efficiency, system longevity and lower maintenance costs."

How did you find the installation process?
"We had some issues with the sub-contractor doing the underfloor heating installation but Ice Energy supported us completely throughout the installation which took about a week."

What has it been like living with your air source heat pump?
"Effortless and comfortable. The air source heat pump has delivered all we could ask for - we run at 22 degrees 24 / 7 and are toasty."

What impact have your renewable energy systems had on your running costs?
"Between 24 May 2012 and 10 July 2014 our electricity costs were £1,168.97. There is no gas or other fuel available to us. During the same period the Feed-in-Tariff payments for our solar pv system amounted to £1,807.51 so the system has provided an excess of £638.54 over this period."

What would you say are the benefits of air source heat pumps?
"Full time confidence to be warm, that cost is not an issue and arthritis has been less painful."

Why did you choose Ice Energy as your air source heat pump provider?
"We undertook long and thorough research before choosing Ice Energy."

What has the service been like from Ice Energy and would you recommend them to others?
"A blip with the sub-contractor was addressed properly and all Ice Energy staff contacts have been nothing if not supportive, warm and professional - we absolutely trust them.

"I have recommended Ice Energy scores of times and will continue to do so."

Solutions Used

  • 14kW Mitsubishi Ecodan air source heat pump
  • 4kW solar pv system
  • Underfloor heating throughout

Download this heat pump case study.