New Construction HVAC - Here's My Favorite System

[EJRYON]

Love the conventional truss attics! Sooo much space to store and move around

[lornelepage]

Hey Matt, first of all thanks for getting back to me with the answer....I’m in British Columbia and very surprised that they wouldn’t use it more here in some area’s where it doesn’t freeze up much. I really enjoy your video’s.

[terrymoline]

I knew you were going to say that you only have to change that air filter once a year. If you have a high merv filter it's going to collect more dust and that's great but believe me as a 37 year heating contractor you have to change the filter more often if it's collecting more dust. The only good thing you telling homeowners to change it once a year is it brings me to their home to reset the furnace and change the filter . Thanks for the extra busines .

[revolution]

You have some good points and you seem very intelligent on what you do. The AC company that installed my new AC 2 years ago with new air ducts won't come fix problems. Anyways Barker air conditioning company fix their mistake under warranty. I'm still having a slight sweating problem on my air handler, where my joints what together on my air handler it sweats along there also where the shuf off is on the air handler. Will to big or small air ducts cuz speculating this problem? I might try it just for giggles to install a bigger duct and replace of a smaller duct going to one of the rooms. Research first.

[believerscc]

I'm a big fan of keeping my HVAC unit in a closet in the conditioned space so it's easier to replace. Our south Texas attics get hot as heck, very few people spray foam the rafters. $$$$

[dosenga]

Great video. Is the Mitsubishi unit a heat pump system? Are the similar to the newer Bosch systems?

[AJ-bins]

Now more companies have entered the inverter market, how do you feel about other brands such as Bosch and Daikin?

[DriverDude]

Good ideas in general, but wouldn't it be better to insulate the attic with spray foam before the ducts are in the way? Also, I don't see any insulation on the return air plenums. Is it recommended to insulate those too?

[MJ-iyfb]

I love the rigid metal and insulation, top notch install.

[josephpuchel]

Hey nice system. When I renovated my house I installed a 2 stage furnace upstairs in a conditioned space with Metal duct supplies insulated wrap then returns are insulated flex. I have a smaller cape and it does really well. I like the Mitsubishi systems. Excellent video

[wesleygarley]

I see problems with high static pressure in that system. I would never tap that close to and end cap considering how short that main plenum is. that combined with only changing the filter once a year is asking for premature failure of the blower motor and the compressor.

[manunited]

Where did u get the resources that American invented /design the VRF and other countries took it over from there? Just curious!

[ATeamAdam]

I would consider that duct job hackery. Come to chicago and do a video one of our jobs. Another obvious note everyone else pointed out...no safety pan. Flex doesnt need to be there to quiet things down. Size your duct properly and you can stick with metal.

[fdtank]

Great video again
It would be nice to know if there is a subsidy from the manufacturer or something influencing the brands
Out of ‘full disclosure’

[AaronPowellvox]

Emergency drain pan? Mastic on the transition on the return? Or are you not finished? Other than that, it's a pretty decent install. I wish I had some of those flood lights so I could show off my work.

[iviaverick]

how do you replace an attic furnace? Cut a hole in the roof and haul it out with a crane?

[foxfamilyhvac]

Great video. I like the sheet metal trunks to flex!

[juliacavaroc]

Is there a reason you go with minisplit over a conventional style heat pump that also has VRF technology? Especially considering the minisplit in this case is ducted like a conventional install. I've always been told minisplits are only better because/when the ducts are eliminated.

[cindybrake]

Change an air filter once a year? Changing your filter is based on run time. Also the higher the merv rating the more restrictive the filter. I would recommend an electronic air filter for better air flow and better filtration to include a UV light. Also it needs a secondary drain pan under the unit with 2 water safeties. Just to keep you from getting sued for destroying the customers ceiling with water damage.

[sheet-son]

Noise from air is due to speed, not flow. The duct should be sized up in those cases..