Pacowy wrote:My amateur vote would be to set it way back when you don't need the heat. The boiler can rest at a comparatively cool temperature ( minimizing stand-by losses), pick-up losses are minimized and heat loss from the dwelling to the outside is minimized. As long as you give it enough time to come back up to the temp you want, I would expect that to be the fuel-minimizing approach. In the very long term it may put more fatigue on the boiler.
Carbon12 wrote:I think the general rule is to only set back 5 degrees. Any more than that uses more energy to reheat than you saved. Assuming the set back is in the 8-12 hr time frame. If you're going away for a week, set it back all you want as long as it's not so cold the pipes freeze!
Carbon12 wrote:Any more than that uses more energy to reheat than you saved.
Of course lower TT settings save fuel however, it's not always that simple, especially with steam.
Freddy wrote:Any time you lower the temperature you are saving fuel. As far as warming an area the only difference between steam & some other type of heat is that steam may have a longer recovery. If it does, then factor that into your programing. The idea is: You want it comfy when you get home, or when you wake up. Set is to drop to what ever temp you deem for when you away or asleep. Have it drop 1/2 hour before. Then set it to come back up 1/2 hour before you get home or awaken. If it's not quite up to heat when you want it to be, change it to 45 minutes before. If that's not enough try longer. Once you get it dialed in you will be saving as much as possible....unless you decide you can live with it cooler.
Pacowy wrote:Carbon12 wrote:Any more than that uses more energy to reheat than you saved.
I'm not really following that. All of the time the house spends at the lower temperature is time when it is experiencing reduced heat loss. If you try to maintain a higher temperature, you lose more btu's.
Carbon12 wrote:A good article against setbacks:
http://www.energyvanguard.com/blog-buil ... t-Setbacks
A good response to the above article:
http://www.energyvanguard.com/blog-buil ... u-re-Wrong
Normy wrote:Aahh, just when I thought I had it figured out¿