Recently converted from a 25+ year old cast iron oil boiler (last checked was operating at 78% efficiency) with separate oil fired hot water tank to a Navien NHB-80 with indirect hot water tank.
Last December on old boiler we used about 100 gallons of oil, this December we used about 250 gallons of LP (2000sqft log house with quite a bit of glass). The propane usage seems a bit out of control and I have no faith in the company that installed the new system.
The one big change we did make is with the oil boiler we set the heat back to 62 at night and during the day, with the new system we keep the heat at a constant 68. All of the reading I did has pointed towards set backs with a mod con are counter productive (even though we would prefer the colder temps at night...).
Aside from short cycling, what else would be the cause of the big increase in fuel usage? I have the heating people coming in on Friday to take a look and would like to be able to provide them as much direction as possible as.
Also, if anyone knows any experienced technicians in the Albany, NY area, please let me know!
Last December on old boiler we used about 100 gallons of oil, this December we used about 250 gallons of LP (2000sqft log house with quite a bit of glass). The propane usage seems a bit out of control and I have no faith in the company that installed the new system.
The one big change we did make is with the oil boiler we set the heat back to 62 at night and during the day, with the new system we keep the heat at a constant 68. All of the reading I did has pointed towards set backs with a mod con are counter productive (even though we would prefer the colder temps at night...).
Aside from short cycling, what else would be the cause of the big increase in fuel usage? I have the heating people coming in on Friday to take a look and would like to be able to provide them as much direction as possible as.
Also, if anyone knows any experienced technicians in the Albany, NY area, please let me know!
