Concerns with HVAC in New Construction
maxjackjoe
2 years ago
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Patricia Colwell Consulting
2 years agomaxjackjoe
2 years agoRelated Discussions
Feedback for new construction HVAC proposal
Comments (7)Yes, install a separate zoning control for the basement. Now is the time. Yes, I think both furnaces are oversized. Makes me wonder if he sized the furnaces not for the heating BTU capacity but for the 4 ton rated blower that would be needed for the 3 1/2 ton condenser. Yes, based on heat gain calc, a three ton condenser seems to be right size, not 3 1/2 ton as quoted. This should be questioned. Keep in mind, 36 KBTUs=3 tons. I would want to know the design temperatures used both inside temp and outside temp both for winter heating and summer cooling. You want excellent ductwork insulation for attic. That's a long way to blow air. You might consider an 80% furnace for second floor installed in attic. This would eliminate the long distance or perhaps insulate attic where it can take a high efficient condensing furnace without fear of freeze ups. The 80% would be a less expensive option. Discuss the options with dealer/GC. Nothing is easy is it? IMO...See MorePlacement of HVAC in new construction
Comments (20)Yes, Ionized, you are right.....it seems likely that there is a need for 4 zones due to the overall length of the house (-110'). Will use the main level mostly, with master suite area taking up 1/3 of the level, great room/ kitchen taking up the remaining 2/3 space. Lower level has 2 bedrooms, bath and storage under the master suite level, with a family room, bar, theater and another bedroom under the great room/kitchen. Open staircase centralized, going from great room to family room. Bedrooms here are for when the grown kids come to visit....a couple times a year. However, I am sure that we will use the bar and theater more often. While the load for the lower level is smaller than the main level, it still seems like we would want separate zones on each level to address the needs of the far reaching rooms. If anyone wants to throw out any other thoughts, I would greatly appreciate them!...See MoreHVAC: House Design - HVAC input please
Comments (6)I suggest separate systems for the first and second floor. That is the best way to have even temperatures on each floor. It costs more up front, but you potentially have lower operating costs. You could zone the loft off the second floor system. However if you are going to be working 10 hours days with multiple pieces of equipment generating heat then spend the money on a mini split....See MoreSingle HVAC zoned or two HVACs without zoned system
Comments (27)The biggest problem with HVAC zone systems is knowing when to choose it as a solution and when not to. Some HVAC companies it's about "sell, sell, sell" whether or not it works... there's more money in "sell, sell, sell" --- when it's only about money? So does the comment above mean I do it for free? No. If you think that you are reading things that aren't there. New construction? best to choose separate systems 9 times out of 10. In order for a zone system to work, you have to know what you are doing. Most HVAC companies staff (the techs they send you) are 20-30 year olds. How much practical experience could they possible have? It's best for HVAC zone systems to be an elegant solution. A HVAC zone system is a tool in the tool bag. Not all homes are suitable for zone systems. Some homes there is no other way, and in some cases complications to those problems will make an HVAC zone system design possibly more prone to problems. You have a problem now, do you want more problems. These decisions among others are decided "in person" --- so considering that becareful what information you decide upon from the internet. Just because it's here doesn't necessarily mean it's true. That said: Depending on equipment level chosen, how many different floors you have in your structure, how much room you have available... will all be factors that make you decide one way or another. From there it's in your best interest to pick a contractor that is skilled: especially when it comes to HVAC zone systems. (there's a lot of garbage out there.) (click to enlarge if necessary) I service the Katy, Texas area....See Moresktn77a
2 years agocat_ky
2 years agoBT
2 years agomike_home
2 years agomaxjackjoe
2 years agomaxjackjoe
2 years agolucky998877
2 years agomaxjackjoe
2 years agomaxjackjoe
2 years agoIzzy Mn
2 years agolast modified: 2 years agoCharles Ross Homes
2 years agoPatricia Colwell Consulting
2 years ago
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