Thermostat Literature

Mark_22

Hello,

Does anyone happen to know of a web site that archives original literature on residential space thermostats? My pre-exsisting system from the purchase of the house uses a Honeywell electromechanical thermostat I would guess is circa early 1960's. There is no visible model number. I'd like to get a copy of the original literature in order to get a definite explanation to some of the adjustable settings it has.

Bill_14

Remove the T'Stat cover

and you should get a good number off the sub-base.

Bill_14

After you obtain the model number,

go here...

http://content.honeywell.com/yourhome/ptc-thermostats/Therm_Lit.asp

Mark_22

I have

alredy removed the cover and didnt see one. I will take a second and closer look. thanks for responding.

Bill_14

Stat

What type of system is this thermostat controlling? Is it a heat only stat or a heat/cool stat?

Mark_22

yes its

heat only. Steam over natural gas.

BillW@honeywell

You probably have...

a T8095, with the old mechanical clock with thered & blue pins. You have two choices, you can use a T8002C1000, our mid-priced 5/2 battery-powered programmable, or our T8602D2018 Deluxe Chronotherm 4. Be sure to set either one to 1CPH for your steam system, they are factory set at 6 CPH for scorched air. How to do it is explained in the manual. They are not available retail, try your heating/cooling contractor, or use the "Find a Contractor" feature above. For a closer look, go the Honeywell website www.honeywell.com/your home and follow the prompts.

BillW@honeywell

You probably have...

a T8095, with the old mechanical clock with the red & blue pins. You have two choices, you can use a T8002C1000, our mid-priced 5/2 battery-powered programmable, or our T8602D2018 Deluxe Chronotherm 4. Be sure to set either one to 1CPH for your steam system, they are factory set at 6 CPH for scorched air. How to do it is explained in the manual. They are not available retail, try your heating/cooling contractor, or use the "Find a Contractor" feature above. For a closer look, go the Honeywell website www.honeywell.com/your home and follow the prompts.

Mark_22

close but

I just looked at the T 8095 on honeywell's site and is not quite what I have. As I said to another poster I will take a second look for a model number. Yes, it should be replaced but I don't see the point at this time because actually the entire system is on borrowed time, not just the thermostat. Its runs ok but is quite inefficient compared to todays heating system technology. I just wanted to make sure I was getting the max out of what i have. Thank you for responding. Any info is appreciated.

BillW@honeywell

If your whole system is on borrowed time

> I just looked at the T 8095 on honeywell's site

> and is not quite what I have. As I said to

> another poster I will take a second look for a

> model number. Yes, it should be replaced but I

> don't see the point at this time because actually

> the entire system is on borrowed time, not just

> the thermostat. Its runs ok but is quite

> inefficient compared to todays heating system

> technology. I just wanted to make sure I was

> getting the max out of what i have. Thank you for

> responding. Any info is appreciated.

BillW@honeywell

If your whole system

is on borrowed time, likely it will expire at 3AM on the coldest night of the year. Besides that, it's costing you a fortune to feed. Any of the good folks on this site will be happy to help you get it running fine, and you may need to replace less than you think. Haveit checked out by a local steam pro, or check the Find A Contractor feature above.

Mark_22

I believe

this is the model number - T852A1C1 ? Honeywell's site does not list it.

But you're probably right. murphy's law says it will fail on the coldest night at 3am. The gas usage is high because of its inefficiency but - without boring you with an entire assessment of the house - the windows need replacement and the house insulation is questionable too. I have found local steam pros are a rarity. I have used this site's find a contractor and the closest is 10 miles out of state (which may raise licensing issues for those guys) which in my area may be considered too far. I guess I should let them decide that but..... I wish I could have an HVAC contractor who REALLY knows steam at my disposal. I've done a lot of reading and sometimes I think I know more than the contractor and it's not even my line of work! But I certainly understand their situation, steam was old technology 50 years ago!

Mark_22

I believe this

is the model number - T852A1C1 ? Honeywell's site does not list it.

But you're probably right. murphy's law says it will fail on the coldest night at 3am. The gas usage is high because of its inefficiency but - without boring you with an entire assessment of the house - the windows need replacement and the house insulation is questionable too. Which should you do first???? I have found local steam pros are a rarity. I have used this site's find a contractor and the closest is 10 miles out of state (which may raise licensing issues for those guys) which in my area may be considered too far. I guess I should let them decide that but..... I wish I could have an HVAC contractor who REALLY knows steam at my disposal.

BillW@honeywell

Hi, Mark

You are right to think about the windows and insulation as well as the boiler. Your home is a system, after all, and failure of one component cascades to all the others. Your windows, insulation, siding, roof etc,etc all play a part. Plan out your enegy savings program, but first, arm yourself with good information. Get a blower door test done. Have a heat loss done. Have your chimney checked out by a certified chimney sweep. Go to home shows, and check out the windows that are available...don't be put off by the high-end stuff that's on display, Andersen, Marvin & Pella also make "plain vanilla" windows that have an energy star rating. Investigate tyvek house wrap, and additional insulation. If new windows aren't in this year's budget, you can seal your old ones quite effectively by installing weatherstripping and re-caukling where there are gaps. If that fails, use the plastic sealing kits.

Call the contractor you found on this site, and ask if there are any liscensing issues about crossing the state line, if not , set up an appointment. Steam systems last a long time, and if they haven't been mangled by someone, are relatively simple to get running again. A new boiler may save you significant energy costs, but is only part of the picture. The rest of the system must be working right, and the quality of the installer is vitally important. Ask around, and find out who has a good reputation in your area.

Mark_22

Yes

I like the sound of blower door and heat loss tests! Ill look into those. Windows (original wieght and chain from the mid 1920's) are also on borrowed time. The former owner installed the good old aluminum triple-track storm windows and I must say they are pretty draft-free but..... Like you mentioned though a quality installer is as important as the item being installed whether its windows or furnaces.

I live in North Eastern NJ about 15-20 miles outside of Manhattan. I would figure a 10 mile trip for a contractor from yonkers or white plains is too far. Most of their jobs are probably very local because we are so densly populated. Plus the potential licensing. besides my local area is flooded with HVAC guys too. but i will give a ring.

I see you work for Honeywell. Do you recognize that thermostat model number? (T852A1C1)