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  1. Replies
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    I think we came up with a solution. We will use...

    I think we came up with a solution. We will use the joist space, but slide a metal duct inside. It requires reducing a return chase slightly (it currently is 32" wide and will be reduced by a...
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    2,028

    Great thoughts. I would consider hiring a...

    Great thoughts. I would consider hiring a professional HVAC company, but when I was on the search for one 3 years ago to replace my furnace and AC I was unable to find a single company who would...
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    2,028

    I will discuss with the contractor tonight and...

    I will discuss with the contractor tonight and suggest that the wooden space must be lined with metal and sealed to create a duct.

    One other thought that occurred to me is that perhaps making the...
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    2,028

    Is this Duct Modification Acceptable?

    I have hired a contractor to renovate my basement. One of the tasks involves relocating a low section of HVAC duct work to give more head room. Currently the duct is directly below the joists, but...
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    9,568

    I'm not sure about your location, but natural gas...

    I'm not sure about your location, but natural gas cost about half as much this past winter than it did in 2008-2009. Don't forget to take that into account. Someone was telling me they were paying...
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    11,223

    I have a natural gas Broilmate and can say it's a...

    I have a natural gas Broilmate and can say it's a great value bbq. You cannot compare it to the higher end units such as webber, but it heats fairly evenly (better than other cheap bbq's I have...
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    4,712

    We have a 90,000 btu 95% furnace for our 2 storey...

    We have a 90,000 btu 95% furnace for our 2 storey plus basement that is slightly larger than 2800 sq ft (each floor is ~1400 sq ft). Our insulation may be better than yours (R32 in the attic and R12...
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    4,712

    Just a homeowner, but go with the 115,000 furnace...

    Just a homeowner, but go with the 115,000 furnace as the 90,000 will not keep up on the coldest days. Unlike a/c's which you typically slightly undersize, a furnace should be slightly oversized...
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    5,078

    I know that Carrier`s equipment is top notch,...

    I know that Carrier`s equipment is top notch, especially their Infinity line. If you cannot afford it, why not consider some other brands. I know in my area I received the highest quote from the...
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    2,513

    Did you try calling other Carrier dealers in your...

    Did you try calling other Carrier dealers in your area?
  11. Replies
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    641

    I guess if the thermostat is set as 1 stage all...

    I guess if the thermostat is set as 1 stage all calls for heat are through W1 then.

    Thanks.
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    Thanks rundawg. interesting with the 60k...

    Thanks rundawg. interesting with the 60k furnace, but I guess it is what it is.
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    That was my best guess, although my inlaws old...

    That was my best guess, although my inlaws old furnace made much more noise from air flow with their old furnace. This is why I wanted to know a little more about cfm to see if my furnace is flowing...
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    Thanks for the information rundawg. Are these...

    Thanks for the information rundawg. Are these speeds for low stage or high stage? Also why would the 60,000btu allow for a lower speed than the 40,000btu unit does (430cfm vs 585cfm)?
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    641

    Honeywell 2 stage thermostats

    I'm wondering if any signal is sent through the W2 terminal from a Honeywell 2 stage thermostat when the thermostat is setup as a 1 stage thermostat for a 1 stage furnace.
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    Bryant Evolution Plus 90i Fan Speeds

    I did a quick search and came up empty so I'm hoping someone with the information can step in.

    I'm wondering what the minimum and maximum blower cfm's are for high stage and low stage heating...
  17. Replies
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    I was thinking the same thing. Can one of...

    I was thinking the same thing.

    Can one of the pros estimate the max possible temp drop across the evap coil using the indoor and outdoor temps given by the OP:
    OAT DB: 83.9 *F
    IAT DB: 79
    IAT...
  18. Replies
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    1,860

    According to CSA F280: Outdoor design...

    According to CSA F280:

    Outdoor design temperatures:
    Heating: -27*C
    Cooling: 32*C

    Summer mean daily temperature range: 18*C
    Outdoor humidity: 9.7 g/kg
    Mean soil design temperature: 10*C
  19. Replies
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    skizot, this doesn't really answer your...

    skizot, this doesn't really answer your questions, but is a comment from someone looking in from outside the box:

    Is your system cooling your house?

    If so, why not save the money you plan to...
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    The Canadian equivalant to Manual J is CSA F280. ...

    The Canadian equivalant to Manual J is CSA F280. F280 allows for a furnace upto 40% larger than what you calculate using design conditions. F280 says the outdoor design temperature for Dawson Creek...
  21. Thanks for the info Carnak. From your...

    Thanks for the info Carnak.

    From your description, it sounds like the requirement for ventilation in the winter (when condensation is likely to occur) is only required if you have a tight home. ...
  22. Why do you suggest that fresh air is only...

    Why do you suggest that fresh air is only required when the a/c runs as opposed to when the house is occupied? Is it to do with the way the houses are built or the climate?
  23. I believe it is actually $900 plus 15%. $500...

    I believe it is actually $900 plus 15%.

    $500 from the ecoenergy rebate for a 14.5 SEER or better (not including the furnace blower)
    $400 from the OPA for a 15 SEER or better (you can include the...
  24. Replies
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    Have you looked at putting additional duct...

    Have you looked at putting additional duct insulation yet? You said in post 6 that the cooled air increased in temperature by 7 degrees. This is an inefficency that can be easily fixed by...
  25. I see you are from Ontario. Do you know about the...

    I see you are from Ontario. Do you know about the rebates available for both high efficiency furnaces and a/c's? You need to do an EcoEnergy audit of your house before you install the equipment. ...
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