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  1. Replies
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    I found the information on water usage. The...

    I found the information on water usage. The Honeywell HE 300 evap rate is .75 gph. The feed rate is 1.5 gph (estimated based on a 2 to 1 ratio published by Honeywell). The gpd capacity is 18. Given...
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    I checked out the HE 300 tonight. It looks like a...

    I checked out the HE 300 tonight. It looks like a much better design than the Aprilaire 700-especially from a sound perspective. 20db quiter is a lot. Besides the squirrel cage fan I like the DC...
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    philjafo, Which powered Honeywells are you...

    philjafo,
    Which powered Honeywells are you putting in, the HE 300 or HE 365?
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    In looking for differences the Aprilaire, General...

    In looking for differences the Aprilaire, General Aire, and Honeywell all use a 1300 RPM motor, while the Skuttle's is 1550 RPM. I don't know if that would affect decibel levels or not. Just...
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    What's the quietest powered humidifier?

    Who makes the quietest power humidifier? I own and have installed many Aprilaire 700s over the years. This model works great, is reliable, and also makes lots of noise.
    I haven't tried the...
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    Low latent heat removal with two stage ACs

    I've been noticing that the high SEER two stage air conditioners, especially those that are ARI certified with matching coils and furnaces, seem to have have relatively low latent heat removal...
  7. Thanks. I forgot all about this resource. I just...

    Thanks. I forgot all about this resource. I just re-registered. It will be 1-2 days before my registration will be processed. In the mean time does anybody know how the UHC-TST550CMMS works as a...
  8. RUUD UHC-TST550CMMS stat humidity control question

    I have another RUUD Mod. install to do. I love these things. I'm looking for an on-line source to see the manual for the UHC-TST550CMMS thermostat and the RGFE furnace. The condenser would be a...
  9. I talked to my Ruud distributor about a week a...

    I talked to my Ruud distributor about a week a go. He has no idea when the 95% Mod will be available.
  10. Is the Rheem/Ruud 95% mod now available? Adam Schuster says it is.

    I just read an article in the 3rd Quarter National Edition of HVAC Insider titled 'This Heating Season, Educating Homeowners Will Make All the Difference' by Adam Schuster. In the article the author...
  11. Will Ruud/Rheem come out with a 95% efficient Modulating Furnace?

    I've heard rumblings that Ruud/Rheem is considering coming out with a 95% efficient Modulating Furnace that would qualify for the energy tax credit? Anybody know anything about this? If this is true...
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    2010 Energy Tax Credit

    Any chance the Energy Tax Credit will be extended to 2011, or will pending Home Star legislation take it's place? Any thoughts on this?
  13. Replies
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    821

    I do run a humidifier in the winter. It has a...

    I do run a humidifier in the winter. It has a hard time maintaining a comfortable level-perhaps due to air leakage from the whole house fan. I know this fan leaks a lot in the summer since it's...
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    821

    Whole House Fan ?

    My 2300 sq. ft. midwest home has a whole house fan in the second floor hallway ceiling, ducted to the outside through 2 sets of louvers ( 1 in, 1 on the side of the house). I rarely use this fan. I...
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    3,591

    My local HD has the Makita 10.8v impactor for...

    My local HD has the Makita 10.8v impactor for $149, or a kit that includes both the 10.8v impactor and the 10.8v driver for $129. Yeah, I know, this doesn't make sense. You'd think the kit would be...
  16. Replies
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    3,591

    Milwaukee vs Makita Impactor

    I'm looking for a light, comfortable, durable impactor for HVAC service and instalation work. It needs to handle cold midwest winters too. I'm considering the Milwaukee 2401-22 12v and the Makita...
  17. The right angle Air Bear came in today through my...

    The right angle Air Bear came in today through my wholesale house. The paperwork indicates it has the same static pressure drop per cfm as the 'straight' Air Bears. Looks well made and easy to...
  18. Would the right angle Air Bear have the same...

    Would the right angle Air Bear have the same specs. and static drop as the straight version? Anybody put in the right angle version? If so, any tips?
  19. Merv clarification-Air Bear & Aprilaire-Return Ducting?

    I have a customer with undersized return ducting and a grossly undersized air filter. Her system has been freezing up. The system has a 3 1/2 ton 13 SEER R-22 condenser with a 4 ton upflow TXV A...
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    CN What kind of furnace do you have? Is it a...

    CN
    What kind of furnace do you have? Is it a RUUD/RHEEM Modulating furnace? At 40% output on the lowest stage, the Mod. is quite a bit different than single stage furnaces.
  21. Replies
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    1,492

    Last winter I installed a RUUD upflow Modulating...

    Last winter I installed a RUUD upflow Modulating furnace in my own home. It works great and is as quiet as can be. This winter I got around to installing a humidifier. Last year I read a post on this...
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    Many years ago I did a system estimate (system...

    Many years ago I did a system estimate (system was functioning fine, just upgrading) that reminds me a bit of this scenerio. The customer was a very abusive businessman. He fit the A hole description...
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    I 'hear' what you're saying. Seems like nearly...

    I 'hear' what you're saying. Seems like nearly all the electronic stats have noisy relays. I put a RUUD Mod furnace and Contour stat in over the winter. The Contour stat is noisy as can be. It makes...
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    I need to balance the air flow in a system,...

    I need to balance the air flow in a system, preferably with dampers installed in the 6 inch round metal branch ducts. Some of these branches are up to 14 feet away from the trunkline. Where's the...
  25. Already tightened all the connections in the...

    Already tightened all the connections in the panel. Keep in mind the 4 new A/V circuits have grounds but the older circuits in the house feeding motors and refrigeration are 12/2 and/or 12/3 with NO...
  26. I've been monitoring the voltage to the A/V gear...

    I've been monitoring the voltage to the A/V gear for 2 days. It's been very steady, running between 117-123 volts. I haven't seen any voltage drop when a compressor comes on.
  27. Tried chokes. No effect. Tried running everything...

    Tried chokes. No effect. Tried running everything through a surge protector. No effect. In checking my 5 year old 200 amp distribution panel I noted that the motor driven appliances were evenly split...
  28. None of the 4 dedicated home theater circuits...

    None of the 4 dedicated home theater circuits share a neutral. The grounds for these 4 meet at the grounding bar in the distribution panel. The house was built in 1959. It has alot of ungrounded...
  29. I have a multi-channel home theater amplifier...

    I have a multi-channel home theater amplifier that buzzes every time the refrigerator or chest freezer compressor starts up. It doesn't happen in run, only start. The buzzing comes from the...
  30. Thread: High Humidity

    by stl hvac
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    1,253

    I had this exact problem last year- oversized...

    I had this exact problem last year- oversized system, 3 ton condenser (5 year old 12 SEER) and orifice metering device. The system couldn't get second level below 60% RH and lower level below 80%. I...
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    Since this sizing match results in longer run...

    Since this sizing match results in longer run times, it works better on a low load day than a 'traditional' equipment match. Low ambient wasn't an issue either. However, I think the best solution on...
  32. Replies
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    I followed Dave Debian's (Airman1) advise and...

    I followed Dave Debian's (Airman1) advise and aggresively sized a system with a 3 ton condenser teamed with a 2 ton coil. The combo worked great and dramatically improved latent heat removal. The key...
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    See new thread: Quietest stat? Relay vs triac...

    See new thread: Quietest stat? Relay vs triac http://www.hvac-talk.com/vbb/newreply.php?action=newreply&threadid=76448
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    Which electronic thermostat would be quieter...

    Which electronic thermostat would be quieter during temperature activated switching on and off-one with a relay in it or one with a triac? Any advantages to one over the other? Thanks
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    I'm leaning toward the Honeywell Focuspro...

    I'm leaning toward the Honeywell Focuspro TH5110D1022, powering it through hard wire. I was hoping it would have a feature allowing it to retain the setpoint in memory in the event of a power loss,...
  36. Replies
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    Great discussion and ideas here. Keep in mind my...

    Great discussion and ideas here. Keep in mind my customers need a horizontal rectangular model to cover the current mounting location, otherwise they'll need to patch, sand, and paint. I'm sure you...
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    I'm looking for a simple to use non-programable...

    I'm looking for a simple to use non-programable horizontal mount heat/cool thermostat to be used with single stage cooling and single stage gas heating. It is for an elderly couple in their upper...
  38. Replies
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    I'm going to pan off the plastic with a small...

    I'm going to pan off the plastic with a small wood frame covered with metal panning. Probably overkill, but that should do it. The copper water pipe I'll leave alone.
    Service, heat load calcs, and...
  39. Replies
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    I'm an HVAC contractor, at least part of the...

    I'm an HVAC contractor, at least part of the time. This is in my own home. Still, I like to adhere to general building codes-hence the inquiry.
  40. Replies
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    1,716

    The pvc is a sink drain. It only occupies 2" in...

    The pvc is a sink drain. It only occupies 2" in one corner, then elbows into the next lane over. I can build around it so it's not in the airway.
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    I need to install a return air drop in a 14" x 5...

    I need to install a return air drop in a 14" x 5 1/2" wall cavity. The ideal location has a 1/2" cold water line and a 1 1/2" pvc drain pipe running through it. I've got plenty of square inches for...
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    Thanks everyone for the input on modding a Mod....

    Thanks everyone for the input on modding a Mod. This forum is a great place to discuss things like this and compare notes.
    Thanks again
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    jpb2 Jackson is a bit of a jaunt for me....

    jpb2
    Jackson is a bit of a jaunt for me. Godfather Ruud Bob is probably my best bet. I can handle the changeout fine, but thanks for the offer.

    Does anybody know, is this the last Mod IFC board...
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    Yes, I'm in the greater St. Louis area. What do...

    Yes, I'm in the greater St. Louis area. What do you have in mind jpb2? Perhaps we've already done business together.
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    Guess I'll have to call my wholesaler and see...

    Guess I'll have to call my wholesaler and see what a new board runs? It's a shame the stat can't be sent in and modified. It's to the point that HVAC electronics are becoming outdated as fast as...
  46. Replies
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    Got a Ruud Mod furnace and Mod stat last spring....

    Got a Ruud Mod furnace and Mod stat last spring. I installed it this past winter. Great furnace! Anyway, today I noticed that Ruud changed the furnace board and Mod stat board during the 4th quarter...
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    Teddy Bear, The Ultra-Aire's ventilating...

    Teddy Bear,
    The Ultra-Aire's ventilating dehumidifier is exactly what I had in mind. Since it has built in filtering of the outside air I thought it would take some of the load off whatever filter...
  48. Replies
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    1,963

    I'm installing a new Ruud Modulating upflow gas...

    I'm installing a new Ruud Modulating upflow gas furnace and air filter in my home. I'm debating Aprilaire 5000 vs Air Bear Supreme 1400 Media type. I have 3 tons of air and a 3 ton 12 SEER condenser....
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    Got some run time on my 'new system.' Lower level...

    Got some run time on my 'new system.' Lower level is 72 degrees with 52% RH. Upper level runs 74-75 degrees with
    44% RH. When I last took these readings the outdoor ambient was 94 degrees with 82%...
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    I installed the downsized coil and balanced port...

    I installed the downsized coil and balanced port TXV yesterday evening. WOW! It really works!!! Prior to the change out I couldn't get the second level humidity below 62%-even on 90-95 degree days...
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