A question was asked on another forum I use about what temperature members houses are and I was prompted to revisit the topic recently when relatives said they thought our house was a bit cold. The temperature at the time was 18 degrees and we don't as a rule have it any warmer. The house has south facing windows and is decently insulated so we also very rarely have any heating on in the daytime. Our relatives have their home warmed to 22 degrees. I've asked on other forums and seeing as this forum has possibly more than the average outdoor types thought I'd ask for comparison .