HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I have a Honeywell L4007A on my HB oil burner and it's no
I have a Honeywell L4007A on my HB Smith oil burner and it's no calling for hot water unless the high is set to 210°. … read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
Had cooling problems with my RUDD UPUL-030JAZ with RHLL-
Had cooling problems with my RUDD UPUL-030JAZ with RHLL- NM3617AJA Air handler system. My measurements are comparing the differential between the return air and the supply air. When the problem occurr… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
About three weeks ago I received a 120 gal boiler and it
About three weeks ago I received a 120 gal wood boiler and it came with a Honeywell Type L6006A Aquastat on it and it has never worked right. The company has sent me two other Aquastats and they have … read more
Appliance Guru
Appliance Guru
18,663 satisfied customers
I have a Honeywell Acquastat L6006C controlling the water on
I have a Honeywell Acquastat L6006C controlling the water on a Swimex exercise pool. I tried to adjust the differential to provide closer control of the water temperature. It had been set by the insta… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
I have a Honeywell Pressuretrol subtractive control on my Burnham
I have a Honeywell Pressuretrol subtractive control on my Burnham gas boiler in the basement heating 2 upper floors (13 radiators) and 1, 3rd floor radiator. The Main setting runs from 2-15, and 2-6 o… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
I have an 1988 Burnam Boiler only gas fired forced hot water.
I have an 1988 Burnam Boiler only gas fired forced hot water. My thermostat is a newer programable one that worked fine but the buttons have failed. The wiring is old 2 wire and i have read that you h… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
My PIN4SNI-ME2 boiler system is single pipe gravity feed. It
My PIN4SNI-ME2 boiler system is single pipe gravity feed. It makes a lot of noise when coming on. It's not a pinging or knocking sound, indicating trapped air, but the sound of gurgling/rushing water.… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
When installing a Honeywell th6100d programmable t-stat-I noticed
When installing a Honeywell th6100d programmable t-stat-I noticed that you can adjust the Cycle Rate per Hour on the cooling as well as the heating. The default is set to 3 for the cooling-but would i… read more
Appliance Guru
Appliance Guru
18,663 satisfied customers
I have a honeywell t8775c thermostat. It works fine, but I
I have a honeywell t8775c thermostat. It works fine, but I would like to upgrade to a programmable one-but don't know if I want to stay with the honeywell brand. I have looked into RS & WR & feel that… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
what is Cycle rate per hour in the Honeywell t-stats? All
what is Cycle rate per hour in the Honeywell t-stats? All others seem to allow you to set the swing temp-but Honeywell uses this CPH factor. Which is better adjustable swing or this Cycle Rate per Hou… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
I have a customer with a wood boiler and gas boiler in parallel
I have a customer with a wood boiler and gas boiler in parallel. The wood boiler has a Honeywell L6006 imersion 3 wire aquastat control on the supply pipe from the wood boiler. It is controling a pump… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
My furnace doubles by providing hot water and steam heat. The
My furnace doubles by providing hot water and steam heat. The water is heated on demand. It appears that the two thermostats are wired in parallel. The old honeywell thermostat (Honeywell Aquastat L40… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
Robertshaw 9600 programming question. After setting time and
Robertshaw 9600 programming question. After setting time and day, it asks for differential". What differential is it referring to? "Differential" within each day or "differential" among the seven days… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
Hydronic Boiler Control Question I have a circa 1948 Arcoleader
Hydronic Boiler Control Question: I have a circa 1948 Arcoleader boiler which when the heating water reaches its high temperature and cuts off the gas burner, the boiler water temperature drops at lea… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
Thermostat with temp differential of 1/2 degree. Is it bad?
Is having a thermostat with a temp differential of 1/2 degree or 1 degree really that bad for your AC/Heating system? It seems to me that having a compressor run more often-but for shorter length of t… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
My wall indoor thermostat is not working. Its on 80 degrees
My wall indoor thermostat is not working. Its on 80 degrees but heat is not coming through the radiator… read more
Rick
Rick
HVAC Supervisor
25,160 satisfied customers
A New Yorker boiler (CLS-8PT)by Burnham was installed with
A New Yorker boiler (CLS-8PT)by Burnham was installed with a Honeywell Chronotherm programable thermostat (existing). Problem is the constant firing on/off with the boiler once room temps are reached.… read more
JBM HVAC
JBM HVAC
HVAC/R Technician
Vocational, Technical or Trade Scho
50 satisfied customers
I have a Honeywell L8124a, c Aquastat and I was wondering what
I have a Honeywell L8124a, c Aquastat and I was wondering what adjustments of the high, low and differential settings would be in my best intrest as far as efficiancy is concerned. As of now I have th… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 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.

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

7,791 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 >

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