U235a4 wrote: beatle78 wrote:
sandman wrote:i'll be installing my vf 3000 next week.
has anyone installed a heat reclaimer on there flue pipe? i figure every little bit helps.
whats the thing called you hook up to the aquastat with a outside thermometer so it automatically raises or lowers your set points based on the outside tempetures?
to me this seems like it would be more efficient than trying to manually raise and lower the set points.
I think that's what the Tekmar 265 controller does.
I was reading up on it yesterday and it measures the outside temperature and that determines how hot the boiler water should be.
I didn't get into the techy stuff on how is controls the aquastats, but it was mentioned in another post that I should get the Tekmar 265 controller when using 2 boilers (oil and coal).
I'm sure there are cheapers ones that can be used to do this as well....
there are a lot of different control most of which I've looked at or worked on. it all depends on what you have for a setup and what features you would like.
i've got a fwh boiler with 4 zones and a oil fired hot water heater.
i'm getting the hot water coil for the vf which i plan on hooking up with a hot water tempering valve and shuting off the oil fired hot water heater untill it gets warm.
i was going to hook up the vf in parallel with the fwh boiler and leave the circulator pump on 24-7.
i'll set the fwh boilers set points far enough below the vf's so that the only time it should ever come on is if the vf goes out.
i figured a set back controler for the vf would be a good addion.
seeing as the tekmar 265 is close to 1/2 as much as the boiler i cant see getting one of those.
what would be a good option for the vf? maybe a tekmar 256 ?http://www.blueridgecompany.com/documents/Tekmar-256.pdf
is there anything i should do different?
let me know