Uploaded June 2026 | Updated September 2026, 1 week ago
With the UK sweltering through another heatwave, here's the perfect time to revisit this exclusive clip from Guy Martin's recent programme, House Without Bills.
To settle the debate once and for all, Guy builds two identical mini houses – one to standard UK building regulations and the other to ultra-efficient Passive House standards. After filling each with half a tonne of ice, he leaves them in the summer sun for a week to find out which one stays cooler.
The results challenge one of the biggest myths about insulation and reveal why better-insulated homes could be the key to staying comfortable as Britain's summers get hotter.
Would you have guessed the winner? Let us know in the comments.
#guymartin #heatwave
Welcome to the only official Guy Martin Proper YouTube channel. Make yourself a cup of tea or twenty & follow every race, every build and every country Guy visits. Fair play.
Subscribe here bit.ly/2OwyYOY
With the UK sweltering through another heatwave, here's the perfect time to revisit this exclusive clip from Guy Martin's recent programme, House Without Bills.
To settle the debate once and for all, Guy builds two identical mini houses – one to standard UK building regulations and the other to ultra-efficient Passive House standards. After filling each with half a tonne of ice, he leaves them in the summer sun for a week to find out which one stays cooler.
The results challenge one of the biggest myths about insulation and reveal why better-insulated homes could be the key to staying comfortable as Britain's summers get hotter.
Would you have guessed the winner? Let us know in the comments.
#guymartin #heatwave
Welcome to the only official Guy Martin Proper YouTube channel. Make yourself a cup of tea or twenty & follow every race, every build and every country Guy visits. Fair play.
Subscribe here bit.ly/2OwyYOY
