The utility bills here, the utility bills here, the utility bill

Mark Eatherton1

and it is 27 percent less consumption with the degree day demand for heating being 5% greater. Thats the bad news...

The good news is, I have been experimenting with the system, trying to compare the base efficiency of the "old" system with the "new" system.

As most of you remember, my old system was powered by a 40 gallon gas fired water heater that I had "modified" to allow a full reset using a tekmar reset control.

To compare apples to apples, this last month I bypassed the programmable set back capability of my thermostat and kept the house at a constant temperature. Under these conditions, I saw a 27% reduction in therm consumption with a 5% higher demand for energy. Overall, it represents a 31% reduction in therm consumption per degree day.

Now THAT'S impressive!

Now, I'm going to reprogram the Honeywell programmable thermostat to allow set back and see what happens.

Did I say I LOVE my little Munchkin???

I LOVE my little Munchkin!!!

Thanks HTP!

ME

Cliff Brady

Can you figure your therms per degree-day

> and it is 27 percent less consumption with the

> degree day demand for heating being 5% greater.

> Thats the bad news...

>

> The good news is, I have

> been experimenting with the system, trying to

> compare the base efficiency of the "old" system

> with the "new" system.

>

> As most of you

> remember, my old system was powered by a 40

> gallon gas fired water heater that I had

> "modified" to allow a full reset using a tekmar

> reset control.

>

> To compare apples to apples,

> this last month I bypassed the programmable set

> back capability of my thermostat and kept the

> house at a constant temperature. Under these

> conditions, I saw a 27% reduction in therm

> consumption with a 5% higher demand for energy.

> Overall, it represents a 31% reduction in therm

> consumption per degree day.

>

> Now THAT'S

> impressive!

>

> Now, I'm going to reprogram the

> Honeywell programmable thermostat to allow set

> back and see what happens.

>

> Did I say I LOVE

> my little Munchkin???

>

> I LOVE my little

> Munchkin!!!

>

> Thanks HTP!

>

> ME

Cliff Brady

Can you figure your therms per degree-day

for both periods from your gas bill? My Pinnacle 140 with indirect DHW is using exactly 30% less therms per degree-day comparing last December-January period to the recent October-November period. I'm now waiting for the meter reader to come January 2nd, I hope. I expect to do even better comparing a colder period to the December-January baseline. I am cheating a little with a 4" by 60" GFX heat exhanger on the stack over the last month though.

I'm also waiting for some near design temperatures. We haven't even broken 10 degrees yet in Chicagoland.

Mark Eatherton1

Reply

I can calculate my therm per DD usage from the bill. It gives me all the data I need to do the comparison.

Last year avg temp was 35 degrees. This years avg temp was 33 degrees.

Last eyars consumption was 110 therms, this years was 80 therms. Using 70 degrees as the balance point (I know, I know) for BOTH years, it works out mathmatically to an average of 31% reduction. Hell, I'm happy with the for sure 27% I'm seeing on my bill.:-)

I'm going upstairs now to take a full fledged body shower for the first time in almost 11 days... And yes, I've filed the necessary paperwork with the EPA, thank you:-)

See you in a PHEW...

ME