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  1. Is anybody from Montreal, Canada, or able to recommend a reliable HVAC contractor?

    I've come to significantly value the feedback provided in these forums for learning and better understanding how my HVAC system works and issues that can be encountered with it. In the time I've...
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    It is definitely an "older" furnace with a direct...

    It is definitely an "older" furnace with a direct drive blower (the blower was changed probably 10 yrs ago or so). The blower was originally belt-driven, but I suspect that it was changed with the...
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    Will a new thermostat be more efficient?

    I've got a Dual Energy HVAC system (oil furnace & Carrier heat pump) with a dual electric rate from the power company. This means that when the temp is warmer than -12C my rate goes down 25%, but...
  4. I had a blower door test done on my house a...

    I had a blower door test done on my house a couple of years ago, but not by an HVAC contractor. Rather by an independent firm measuring the energy efficiency of the house, indicating leaks, etc. I...
  5. Fair enough. But right now, the temp is hovering...

    Fair enough. But right now, the temp is hovering around the freezing point, and the house is sitting at about 27% RH. I turned on the blower activation, and the fan has been running for the last...
  6. Strange, especially for Pro Members who should...

    Strange, especially for Pro Members who should like to advertise their expertise, esp since they are already providing invaluable insights without remuneration.



    My issue with that is that...
  7. I'm in Montreal, Canada, and the names that show...

    I'm in Montreal, Canada, and the names that show up on the map are:
    "Chauffage et Air Climatisé Walter Wilson Ltée"
    and
    "Climatisation Logan Leroux"

    Interviewing them is always something valid...
  8. How to match a Contractor on the map to a user on this site?

    I've had a lot of difficulty finding trustworthy HVAC contractors in my area, so I thought I would look at the map. How can I associate a contractor on the map to a user on this site? I'd like to...
  9. How to size a humidifier? House seems constantly dry

    I've got a split level home in Montreal, Canada, with about 2400-2600 sqft liveable space, and an additional 600-800 sqft of non-liveable, but still conditioned space (attached garage and crawl...
  10. Thanks so much everyone for all your information....

    Thanks so much everyone for all your information. It has helped me significantly understand my system better and will better be able to judge if it is worth changing my thermostat, and give me...
  11. I had always thought/understood it was the HP...

    I had always thought/understood it was the HP that called for Aux heat if it was unable to generate heat given the climate. I thought/expected a cutoff to be programmed into the HP to determine what...
  12. So do understand correctly that it is the tstat...

    So do understand correctly that it is the tstat that determines if the HP is unable to supply the required amount of heat? I had thought there was some control logic within the HP itself that would...
  13. I've got a dual-fuel system, so my eheat is...

    I've got a dual-fuel system, so my eheat is actually oil furnace, but the concept remains the same. Am I understanding you correctly that under normal conditions, the tstat will always call for heat...
  14. Thanks. That makes sense, except that the temp...

    Thanks. That makes sense, except that the temp sensor from the HP is connected to the tstat and not to the BPC-1. Would that not imply then that the tstat needs to make the call for em-heat (based...
  15. Ah, I had not realized that a call for heat pump...

    Ah, I had not realized that a call for heat pump heat would be a call to the AC with the reversing valve appropriately set. I had mistakenly presumed it would be a call for heat. Thanks for the...
  16. How does a thermostat call for E-Heat with only 6 basic wires?

    I was looking at my thermostat's wiring the other day and was wondering how it was able to call for e-heat with the wiring it had. I have dual-fuel system, with a dual-fuel BPC-1 "controller"...
  17. What issues have you encountered with the Nest thermostat?

    I'm considering having my thermostat replaced with a Nest, given all the intelligence that it purposes to have. I have a couple of friends who have them and love them. However, that being said, I...
  18. Actually, it's a second (third?) floor to a split.

    Actually, it's a second (third?) floor to a split.
  19. Good point... hadn't thought of that. So then...

    Good point... hadn't thought of that. So then how do you size an HVAC system for new construction? I guess you can wait until the envelope is in place and then do a leakage test, but to check...
  20. List of Reputable HVAC Contractors for the Montreal area?

    Hi,

    I'm in the process of drawing up plans to add a floor to my home - roughly 1000sq ft. I currently have about 2300 sq ft, so it is a sizeable increase. One of my key concerns is the HVAC. I...
  21. Thanks for the tip. I presume you have...

    Thanks for the tip. I presume you have experience with these systems? I did take a quick look at their site and it seems too good to be true. Whereas a conventional HP ends up being inefficient...
  22. Is the cost of running a Geothermal heat pump less than an air-based heat pump?

    Hi,

    I live in Montreal, Canada and have an oil furnace and standard heat pump. My heat pump runs until -12C at which point the oil furnace takes over full-time. I have a dual-energy electric...
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    Really? Wow... Glad to have learned something...

    Really? Wow... Glad to have learned something new. Is it really illegal to put fuel oil in ur truck then? How are they supposed to catch something like that? Or does the dye come out of the...
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    Are they really? Heating oil is burned via a...

    Are they really? Heating oil is burned via a spark. Diesel is "burned" via pure compression. If they were really the same thing, wouldn't everyone be using #2 oil in the diesel...
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    Yes - have had an oil delivery. Not cold. :) ...

    Yes - have had an oil delivery. Not cold. :) But trying to understand how the system works such that if ever such a disaster happened again in the future, I could be more ready. Additionally, on...
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