HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

We just puchased an older house. When did lennox build GF135M-1…

Customer Question
We just puchased an older...
We just puchased an older house. When did lennox build GF135M-1? It is a gas fired forced air 135,000 BTUH
Submitted: 8 years ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 minute by:
6/13/2010
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 8 years ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,155
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
Chat Conversation Started
Billy :

Is there a serial number available?

Customer:

No there is not.

Billy :

Is this the one that the exhaust pipe leaves the furnace from the back?

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,155
23,155 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

BillyHvac is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,024 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

Related HVAC Questions
I have a & Rodgersd 1 F78-151 thermostat and a lennox Gas
I have a White & Rodgersd 1 F78-151 thermostat and a lennox Gas fired forced air furmace. When it is turned on the heat starts up burt after a few minutes shuts off. After tinklering with the thetrmos… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a lennox gas fired forced air furnace (serial
I have a lennox gas fired forced air furnace (serial #4691H00469). The pilot light is on but the heat won't come on.… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Lennox Pulse, 1988. Worked fine until converted
I have a Lennox Pulse, 1988. Worked fine until converted from LP to natural gas. Now it fires up once, runs it's normal cycle, shuts down, and won't restart unless I recycle the power. Then it takes u… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I have a Honeywell furnace 80 Plus I purchased a wireless
Hi I have a Honeywell furnace Bryant 80 Plus I purchased a wireless extension thm4000r1000 and a wireless Thermostat TH6320R1000 to control a 3rd zone of my TrueZone System Hz322. I mean that two zone… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,155 satisfied customers
I have an older Rheem Forced Air Furnace, Propane, that has
I have an older Rheem Forced Air Furnace, Propane, that has 5 rows of burners and one pilot. Some times when the heater turns on, it will light a couple rows of burners and the rest are lighted after … read more
Nathan Marshall, MP
Nathan Marshall, MP
Master Plumber,HVAC Tech,Tradesman
Vocational, Technical or Trade School
275 satisfied customers
I have two forced air gas furnaces wired together in the basement
I have two forced air gas furnaces wired together in the basement of two story house. I only have one thermostat downstairs. How would be the best way to reconfigure them for max efficiency?… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
i HAVE A LENNOX GAS FIRED FORCED AIR FURNACE, MODEL # XXXXX
i HAVE A LENNOX GAS FIRED FORCED AIR FURNACE, MODEL # XXXXX 80NLT. I AM TRYING TO GET IT TO HEAT THE HOUSE. IT SOUNDS LIKE THE POWER IS CURRENTLY ON BECAUSE I MOVE THE FAN LEVER ON THE THERMOSTAT TO T… read more
V12Tech
V12Tech
252 satisfied customers
I have a Lennox HPXA12-36 3-ton heat pump condensing unit with
I have a Lennox HPXA12-36 3-ton heat pump condensing unit with matching indoor evaorating coil that is connected with a Regal REL 750 95,000 btuh oi fired back-up furnace. The system is 6 years old. I… read more
MR.Heat&Cool
MR.Heat&Cool
I am looking to buy a used Lennox model LGC156H2BLG air conditioner
I am looking to buy a used Lennox model LGC156H2BLG air conditioner to place on a commercial building. Are parts available for the unit still? How large of a building will this unit heat and cool? can… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
i have a Ruud Silhouette II gas heater it came with the house
i have a Ruud Silhouette II gas heater it came with the house i replaced the old analog Thermostat with a digital Rite Temp 3060 one. This also is hooked up with the AC unit. HEAT: Ruud Silhouette mod… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
Heelo, We have a Viessmann Vitogas 050 furnace for our hot
Hello, We have a Viessmann Vitogas 050 furnace for our hot water and forced hot air (fuled with propane). A technician was in today checking it in preparation for the winter and said it acted as expec… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
Im about to purchase a Carrier Infinity ICS gas furnace, model
I'm about to purchase a Carrier Infinity ICS gas furnace, model 58MVC. Contractor #1 did a whole house heat load calculation, resulting in 42,300 BTUH, and recommended a 60 BTU furnace. Contractor #2 … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a Lennox G40UH(X) series furnace that is vented to a
I have a Lennox G40UH(X) series furnace that is vented to a masonry chimney. I want to change the venting to metal pipe going up through the roof in the same space where the chimney is now. A gas wate… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
I am plumbing a new furnace in a band new house. The gas connection
I am plumbing a new furnace in a band new house. The gas connection at the furnace is 3/4. Past the gas furnace and downstream from the furnace will be a navien on demand water heater, which also has … read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
I have a lennox air kh4 75 s furance. I went away for the
I have a lennox air kh4 75 s furance. I went away for the weekend and set th temp to about 50 degrees when i came back in just now it wont fire up. I was able to fire it up briefly once for a few seco… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
596 satisfied customers
We had a new Arcoaire furnace installed in August. I got my
We had a new Arcoaire furnace installed in August. I got my bill this month (Dec.) in So. CA and it was $191. The furnace blows cool air unless you set the thernostat higher. This last mo. We kept the… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
I have an oil fired forced hot air furnace that I want to replace
I have an oil fired forced hot air furnace that I want to replace with a gas fired condensing boiler hot air furnace. Does such a thing exist as one unit, or do I need to buy a boiler and air handler … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Can we add an induction fan on the exhaust to gain an extra
Can we add an induction fan on the exhaust to gain an extra ten feet? We need to extend to thirty feet, not twenty per the specs. Is it within code (UMC) to do so? Here are the specs: Furnace is a Car… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,155 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x