SuperHome Database

Wendover, Dobbins Lane

House Summary

Bob and Judy Lewis

House Type:
1955 Two storey detached house

Carbon saving:
72% - SuperHomes Assessed  

  • Wendover SH wall insulation

Measures installed:

  • Cavity Wall Insulation
  • Double Glazing
  • Loft Insulation
  • Oil Condensing Boiler
  • Solar PV Panels
  • Solar Water Heating

Upcoming events

Early interest in Open Days encourages SuperHome owners to host more events. If you'd like to visit this property please contact the owner and let them know. SuperHomers are often happy to respond to questions about their refurbishment project by email between times. Please read ‘more on contacting this SuperHomer’ before you make contact.

What visitors are saying

"Very welcoming and knowledgable!"

Personal story:

We are the second owners of the house and moved here in 1970. Where it’s been sensible and affordable over the years we’ve done things to make the house more energy efficient and comfortable. I started out as an electrical engineer and the fact that I can understand the technical side and do some of the things myself has been helpful. Nothing we’ve done is remarkable, we’ve just gone on and done it instead of talking about it.


Both my wife and I come from from a rural area and I like to think I’ve got self sufficiency in our genes. I like the idea of doing sensible things that reduce our footprint whilst we’re on this earth.

Key changes made:

  • Double glazing throughout, some UPVC and some wood
  • Cavity wall foam insulation throughout.
  • Loft insulated to joist height (150mm) and boarded out above main house. Some glass fibre and some Celotex.
  • TRVs fitted on radiators
  • Radiators fitted with reflective foil throughout. Some have been changed to modern high output models
  • High efficiency oil boiler. The boiler was originally coal. Our first oil boiler served us for over 30 years and then we changed to a very high efficiency oil boiler about four years ago
  • Evacuated tube thermal solar system: 3m² output = 2,000 kWh (Riomay 100 mm) installed about eight years ago with £500 grant
  • Large thermal store
  • 3.7kWp PV system fitted on the roof at the back of the house in July 2011: (Sharp) Year 1 output = 3.53kWH means we are net exporters of electricity. Our roof orientation is about as near to optimal as you can get. The output results are 6% above the manufacturer’s rated specification. Total installed cost was £11,930 and payback should be 6-7 years
  • Energy efficient appliances
  • Front porch. Added 20 years ago, this acts as an ‘airlock’, significantly cutting draughts and heat loss
  • An existing wood burning fire based on a Baxi design that takes the air needed for combustion from under the floor, making it much more efficient
Measures installed in detail:

  • Double glazing throughout
  • Cavity wall insulation
  • Loft insulated to joist height and boarded out
  • TRVs fitted to radiators
  • Radiators fitted with reflective foil throughout
  • High efficiency oil boiler
  • Evacuated tube thermal solar system
  • Large thermal store
  • 3.7kWp PV system
  • Energy efficient appliances
  • Front porch
Benefits of work carried out:

It’s difficult to be precise about the savings we’ve made because we’ve been making improvements over a long period of time. The cavity wall insulation was one of the first measures and it had a dramatic effect on comfort and energy consumption. Most years we are self sufficient in hot water from May to September thanks to the solar thermal system.

Favourite feature:

The most recent measure we’ve installed, the solar PV. It’s very simple and very satisfying. The kit allows you to interrogate the system to see what’s going on so you can see the electricity that’s being generated, how it’s saving CO2 and so on. You go very quickly from being a consumer of energy to being a net exporter.

Contact this homeowner

Assessment types

SuperHomes Assessed

A home that has been visited and assessed by us and confirmed as reaching the SuperHome standard, which demonstrates a 60% carbon saving.

Homeowner Reported

Information has been provided by the homeowner about their home and energy use prior to the installation of measures and following their installation which demonstrates a carbon saving. This information has not been verified.

Remote Assessed

The homeowner has provided information on their home including what measures have been installed which has enables an assessor working on our behalf to assess their carbon savings. This home has not been visited to verify the measures installed.


This home has not been assessed, but the homeowner has reported what measures have been installed. It may be that this home is awaiting assessment.