bring down energy bills. 0ur climate editorjustin rowlatt spent the morning with the britian s energy secretary grant shapps to find out what he does in his own home. hi thanks for having us around. the governments as draught proofing the doors and windows could save £60 a year and then there is your boiler. ., , ., , ., , , boiler. lots of boilers are ust set to max as boiler. lots of boilers are ust set to max as this i boiler. lots of boilers are ust set to max as this one boiler. lots of boilers are ust set to max as this one is boiler. lots of boilers are ust set to max as this one is at h boiler. lots of boilers are just set to max as this one is at the - boiler. lots of boilers are just set - to max as this one is at the moment. they don t need to be. this is just a question of turning it down. they say about 60. a question of turning it down. they say about 630- a question of turning it down. they say about 60- a question of turning it down. they say about 60. tha