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Type: Posts; User: Tom Campbell

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  1. Ducting - Returns must be fully ducted or not?

    OK - another weird question from yours truly:

    We're removing the oil furnace and el-cheapo A/C at our new house and replacing it with a upper-mid level Carrier heat pump, with an AprilAire ERV. ...
  2. Awesome - thank you so much for the response...

    Awesome - thank you so much for the response back! I really thought this kind of system should work, my only fear was cooling by the slab. Given the styrofoam insulation we've found against the...
  3. I'd call it a crawl space too - but I'm used to...

    I'd call it a crawl space too - but I'm used to "crawl space" meaning that there is a short masonry wall with a sill plate that the floor joists sit on. In this case, the whole house is inside the...
  4. UFAD - Using an Under Floor Air Distribution system in a 1980's Earth Sheltered Home?

    If you look through my past posts, you'll see I always seem to bring the weird ones here. So this one is really weird.

    Last week we bought a house that will hopefully be our retirement home in 20...
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    Thanks for all the feedback guys! I've read up...

    Thanks for all the feedback guys!

    I've read up on the Honeywell Redline interface and the Prestige (and FocusPro). They'll get the job done.

    I did read more into the EcoBee and am impressed...
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    Thermostats - Upcoming models?

    Background

    So we just bought another house for vacation rentals - a house with baseboard electric heat and no A/C. Thankfully it has a full basement with open rafters, so we can do something...
  7. Agreed about the simple solutions often being the...

    Agreed about the simple solutions often being the best!

    My biggest concerns are twofold, both having to do with the fact that we rent to vacationers:

    1 - When the temp goes below the...
  8. Electric Baseboard Heat Thermostats & outside temp sensors

    A follow on question to one of my earlier ones about Mini-splits (and PTACs too I suppose).

    Thermostats for traditional ducted heat pump systems are smart enough to know when to kick in the aux...
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    Thanks for the quick feedback guys. From the...

    Thanks for the quick feedback guys. From the install directions I've found online, non seem to mention how far from the floor, only how far from the ceiling to install. Although promising that...
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    Mini-Split Air Handler Locations

    My wife and I bought another house for vacation rentals, and right now it has electric baseboard heat and no A/C. We're considering the best approach to both add A/C and improve heating efficiency -...
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    Do you have or want A/C in the house as well? ...

    Do you have or want A/C in the house as well? You obviously already have the ductwork...

    I would imagine that some of the techs here might be able to speak to the strengths or weaknesses of a...
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    As you'll see here in the threads, there are...

    As you'll see here in the threads, there are differing opinions as to what is normal and how loud loud is. I can tell you that the Trane we replaced was quieter than the Goodman we replaced it with. ...
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    Since I have a new Goodman as well, I will pass...

    Since I have a new Goodman as well, I will pass on one final piece of experience. If you have downstairs bedrooms, or even upstairs bedrooms with windows that face the direction you will install the...
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    No can do - To get a pro membership here you need...

    No can do - To get a pro membership here you need to work in the industry.

    I'm an IT guy by profession and a Generalist by nature. My special skills involve the ability to innately understand how...
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    If they tell me a response like the one above is...

    If they tell me a response like the one above is no longer welcome, that's fine. But I think the real intent of the starred pro response limitation is so that people like me don't try to offer...
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    Features, features, features. I can't offer...

    Features, features, features.

    I can't offer any technical advice, or even brand specific advice, but as a homeowner who replaced a system just last year, let me share what went through my head as...
  17. Thanks for the follow up guys - but I really am...

    Thanks for the follow up guys - but I really am no longer looking for a solution to my specific problem. The real spirit of this thread was to generically help others in the same boat as me. The...
  18. I started this thread last winter because I...

    I started this thread last winter because I noticed that I wasn't the only person asking the same set of desperate-for-a-solution questions. No-one comes here asking these questions over the summer,...
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    I can't offer technical advice, but I can offer...

    I can't offer technical advice, but I can offer an analogy.

    If you think of your HVAC system the same way you think of a car, a car that is your only car, it helps put things in perspective.
    ...
  20. snip-snip ---- Message outdated and removed.

    snip-snip ---- Message outdated and removed.
  21. Since this thread was resurrected I put together...

    Since this thread was resurrected I put together a bit of a summary of the conclusion I came to as a homeowner and added it to the thread.

    Then I re-read TimeBuilder's post and realized that...
  22. Seriously considering it - and PPL Electric...

    Seriously considering it - and PPL Electric finally added a generous rebate program to support them too. But with 3 bedrooms, a living room, dining/kitchen, and a basement game room, the cost of the...
  23. Recommended Make/Model HP with a quiet defrost cycle?

    I'm looking for some recommendations for makes/models of heatpump with lower-than-average defrost noise levels.

    I learned my lesson on the pair of Goodmans we had installed at our own house. ...
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    Well - here I am adding to a post again. ...

    Well - here I am adding to a post again.

    Because I have the same problem as the original poster of this thread, as well as thread...
  25. A couple things to consider: If the house is...

    A couple things to consider:

    If the house is only 59 degrees right now (BRRR!) then it is realistic that the temp at the registers when the heat pump is running would only be 68 or 70 degrees. ...
  26. Thread: Snow

    by Tom Campbell
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    Sara - BaldLoonie said it first, but I'll...

    Sara -

    BaldLoonie said it first, but I'll reiterate it. It must be uncovered. Running it with snow around it is pretty much the same as wrapping a blanket around it in the summer when you expect...
  27. That's really good news. Can you add another...

    That's really good news. Can you add another entry to this thread when you hear that the letter went out to the certified installers? I'll hold off contacting my installer until there's a fair...
  28. Nylon Webbing Strap. Looks a lot like the 2" wide...

    Nylon Webbing Strap. Looks a lot like the 2" wide webbing used on folding lawn chairs. Use it to hang the lines at least an inch below the trusses, beams, whatever it is that you're hanging it from....
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    Clear ice, or frost? Old installation methods...

    Clear ice, or frost?

    Old installation methods didn't always raise heat pumps off the ground, so water would pool as it refroze after melting from the higher coils during each defrost cycle.

    I...
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    Excellent point. Last summer when we replaced...

    Excellent point. Last summer when we replaced our old HP system we considered oversizing, figuring a 2-stage would let it run most of the time at the old system's capacity. But when it did go into...
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    Dang Gary - you type faster than I do, and your...

    Dang Gary - you type faster than I do, and your answer is better than mine!
  32. Replies
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    If designed by the manufacturer to work together...

    If designed by the manufacturer to work together to accomplish a specific SEER or HSPF rating, I would still say they are a "matched" pair.

    To EllBaker's question about the appropriate CFM, I'm...
  33. It should be about 400 CFM per ton. There are 2...

    It should be about 400 CFM per ton. There are 2 stages for your heat pump. Stage 1 is typically 2/3 of stage 1 (the rated tonnage) So stage 2 of your 4 ton unit should 4 tons, while stage 1 should...
  34. No one has tackled this lonely little post, so...

    No one has tackled this lonely little post, so I'll throw in a quick response:

    A 10 degree delta isn't all that unusual for a heat pump - it works by turning over the air in a room multiple times...
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    If it only ran a few minutes, it may be that it...

    If it only ran a few minutes, it may be that it is simply cutting out of defrost cycle too early. Most of the simpler systems are designed to enter defrost after every XX minutes of use (typically...
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    I don't want to thread-jack the OP's thread, but...

    I don't want to thread-jack the OP's thread, but % humidity and moisture content in the air are not the same. When it's 100% humidity it does not mean that we are breathing H20 instead of air, it...
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    Since the heat pump works by drawing outside air...

    Since the heat pump works by drawing outside air across the coils on the outside unit, and those coils are even colder than the outside air itself, frost and eventually ice can build up on them. ...
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    Perhaps this whole thread belongs in the Controls...

    Perhaps this whole thread belongs in the Controls forum instead of the HVAC forum.

    One comment though -
    Open source Linux was once the domain of "Hacks" and wannabees. It would NEVER be...
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    I think I'll end up moving it regardless...

    I think I'll end up moving it regardless (although as mentioned in the first post of the thread, it's so darned loud I think I'll still hear it at night). It's my wife's comfort that has become the...
  40. HVACVegas has probably hit the nail on the head -...

    HVACVegas has probably hit the nail on the head - the original designer probably had summer cooling in mind versus winter heating (your profile doesn't say where you are located).

    As many have...
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    Sorry for a bit of a rant, but I really have to...

    Sorry for a bit of a rant, but I really have to let this out:

    There are about 6 or 7 regulars here who turn nearly every post by a non-pro into a personal attack on the original poster. The...
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    That's a cool idea about having a custom...

    That's a cool idea about having a custom thermostat solution built - I knew there was a whole industry to support that kind of thing for commercial and home theater stuff. I never considered going...
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    RE: Electrical Load - That big 4-switch unit is...

    RE: Electrical Load - That big 4-switch unit is actually one 200 Amp breaker - so you have 200 Amp service in to your house. Assuming you don't have a big hot-tub and other electricity draws that...
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    The VP IAQ should also let you get rid of all the...

    The VP IAQ should also let you get rid of all the extra relays for the humidifier and the need for an extra external thermostat (assuming you buy and install the Honeywell external temp sensor). ...
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    Don't thread-jack someone else's thread - you...

    Don't thread-jack someone else's thread - you confuse the people who want to help out the original poster!
  46. Replies
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    Dr Rags - Of course the tech you have come to...

    Dr Rags -

    Of course the tech you have come to the site will be better able to evaluate your options, but I'd be a bit wary of putting all my hopes on the 8000. Yes, it is able to support 3 heat...
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    The unit is broken. Whether it's low charge,...

    The unit is broken. Whether it's low charge, failed defrost board, or some other cause for it not defrosting properly it's broken. With all the ice caking it, it cannot draw air across the coils,...
  48. Two thumbs up. As I was choosing among...

    Two thumbs up.

    As I was choosing among brands, two different contractors noted that different manufacturers compensate contractors at different levels for warranty service calls, and...
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    Keep in mind that the builder's installer might...

    Keep in mind that the builder's installer might not have only been inexperienced, but he may have also laid things out a certain way because access was easier for him. The direction of beams and...
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    I understand the logic now. That should work as...

    I understand the logic now. That should work as well.
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