HEATING AND COOLING - A New FORCED AIR FURNACE From Start To Finish
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- Опубликовано: 31 май 2024
- A complete HEATING & COOLING system is installed from start to finish and this episode centers around a FORCED AIR GAS FURNACE. (Part 1 of 2)
See Part 2 of 2 here: • HEATING AND COOLING - ...
HEATING AND COOLING
A New FORCED AIR FURNACE Complete Install
New Heating Ventilation and Air Conditioning (HVAC) Install
From Start To Finish
Furnace, Ducting, Gas Piping & More!
In this episode, Deric (the Architect turned Handyman) follows around the heating and air contractors to learn all the basics of a forced air heating and central air cooling system.
Watch this video to get informed on everything that is involved with a brand new forced air (HVAC) heating system from A to Z.
Subscribe to follow the progress on this Home Improvement renovation series and stay tuned for more Do it Yourself and How To videos as remodeling work progresses on the old 4th Avenue Fixer Upper.
Rundown Reborn - Episode 40 
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How do you decide what size system to use “what I do is count the runs and you’ve got 100 cfm per run so with 16 runs that’s a 4 ton” ugh 🤦♂️ this is so wrong. The correct answer is “you do a load calculation” determine the amount of btu required for the home in both seasons. 1 ton = 12,000 btu and 1 ton = 400 cfm of air (appx). From there you can design the runs. Take the SQ FT of every room and multiply by .7 to get cfm. From there you can look at a duct chart to determine the appx size of duct needed for each room. From there you need to consider velocity drop due to distance and how to orient each run. System design is far more important than the mechanical install. These guys might be able to make the connections but that’s only half the job.
Good point! On their defense, I might suggest they have seen enough of the "typical" homes in my area and are quite familiar with the "typical" load demands for these old "worker" homes. Quick calcs like the one described in the video could verify if they need that extra 1/2 ton or not. Also - the owner of the business (he's not shown in this video) did do some more thorough calculations early on in the process after the initial walk through. I agree load calcs are THE way to go if you want an accurate assessment - especially in commercial or large home installations and in new construction. For a small home (say under 2k sq ft) where you are retrofitting a system to a house built before forced air systems were even invented, experienced estimating of the loads may be sufficient to size a system - in many cases. I think it all depends on the situation.
I've got a small house 900 sqft. If I just ran 10 or 12 in flex for just 4 rooms do you think that's to much can you go to big?
@@chroniclush140 I’m really not the best person to ask this question to. As you can see from the video, I hired HVAC guys to do this for me. Perhaps someone else can help.
This comment was really helpful. I’m slowly learning how. I don’t think it can be too hard. Really I’m just installing it as a back up for wood heat.
Yeah exactly my thoughts his calculations were A good rule of thumb. But with my personal experience i have 15 registers my living room has 4 supplies my kitchen, master bath, and master bedroom all have 2 supplies both guest bedrooms and guest bath a utility room and office all have 1 supply all of them combined equals by his calculations 1,500 CFM which is roughly a 4 ton unit with the blower set at 1600 CFM my last system was installed using those calculations and for the last 12 years I have struggled to keep my home cool in the summer. Hired a new hvac company and they did the correct way of doing proper calculations and determined I actually needed between a 4.5 and 5 ton system their resolution they installed a Comfort-R American Standard 18 seer Gold 18 two-stage heat pump with a Trane variable speed air handler because they said sometimes I would only need 4 tons and 1600cfm to cool my home but in the hotter part of the summer I need every bit of 5 tons 2000cfm otherwise when it gets into the triple digit temps here in Arkansas the 4 ton system I had stuggled bad to keep it any cooler than 80°. The new system they installed is able to maintain whatever temperature I put it on. if I set it to 65° (not that I ever would) it will get it there and maintain it regardless of the outside temperature. The thing is way more efficient because for the first Time in 12 years even my electric bill was cut by more than half because the old system would run 18 of every 24 hours in the summertime this new system barely 8 hours and it cycles properly on 15 or 20 minutes of 5 or 10 where the other one would come on about 10:00 in the morning and then stay on until about 5:00 the next morning set at 75°. Long story short best to oversize with a two-stage system if possible with a variable speed air handler that way you don't have short cycling of the oversized unit.
Now these guys are the real deal.💪🏿💪🏿💪🏿💪🏿💪🏿💪🏿💪🏿
Yes they are. They did a great job.
GREAT IDEA MAN
Thank you. Welcome to the channel!!!
What an awesome video!!!!!
Glad to hear it
I’m looking to buy a 3000 square foot 100 year old house with ugly radiators throughout. There’s an addition on the back of the house, two levels, that has no heat at all. If I do buy this house I’m going to install forced air, heat and cool, throughout. I know it’s going to be expensive but it sure beats the inefficient radiators. I’m just curious if it would be cheaper to install two units. One in the attic and one in the basement. This way I don’t have to run ducts through the walls. Ceiling vents could be installed upstairs and floor vents down. The only issue I can think of is where would I install the outside units? I say I but I mean they. There’s no way I’d attempt this kind of project on my own. Thoughts on anything I mentioned. I budget or estimate 20 to 30k for this project.
Probably a good budget. 2 systems are better than one. It allows for zoning. Find a good contractor. They can give more specific advice
17:35 I'm curious as to what they were doing with the big red tool. Also, there could be more narration when they connecting the new gas pipes in the crawlspace to explain, in more detail, what they were doing and why. Otherwise, great work. I'm really enjoying your videos and the ingenuity and work ethic that you are demonstrating to yourself, your family, and the rest of the world.
Good question! The red tool is a pipe threader. They are making their own pipes (instead of using stock lengths) and threading the cut ends. I didn't really narrate on this video too much as you mentioned. I guess I just wanted to sit back and watch and learn along with you all. I am not an "expert" on HVAC so I didn't have a lot to add verbally. The objective of this video (perhaps too near sighted) was to visually document the entire process of a complete install. Thanks for watching and for the feedback!
Hi, How much does it cost to upgrade a 50,000 Btu natural gas fired furnace and what
model do you suggest. All the ductwork are installed so all I need is a new unit hooked
up to the ductwork ?
Depends on where you live but figure $3000+ just for the equipment
Did you consider a mini-split system like a Mr Cool heat pump system?
We did consider this but there was no space on the upstairs gable ends to fit one in. We decided to go with a standard forced air and central air system. This also allowed us to use natural gas to fuel it.
Thank u
You’re welcome. Thanks for watching!
What are the tools called to fabricate the box that bends them and you just buy all your ducting or metal at local menards ?
I believe what you are referring to is a sheet metal hand brake. His in the video might be homemade. Here is one online (affiliate link) that you can buy if you don't want to make one yourself. amzn.to/3dEIEFI
They build their own rigid ducts from a roll of sheet metal. It’s cheaper this way and they can build exactly what they need.
Thanks for watching!
I'm looking at a home that has just a gas furnace connected to ductwork in the Attic,, no AC,, it's in a closet in the hallway,, can it be replaced with a gas furnace AC combo even if the area has to be modified a little bit and tied back into the ductwork and hooked up to the fan outside under the floor would everything be okay? Is this something that's done often? it's a block Foundation I would like to know before purchasing the home,, Thanks! 👋
I would recommend contact an HVAC contractor or two to take a look at it before buying. They will usually do this for free. They can give you a good idea what you are facing. Old ductwork can sometimes be a hinderance for new systems - thereby eliminating any efficiencies you gain in a new system. Old ductwork can leak and drag on the airflow a lot. Best to get a pro to look at it.
Good luck with the endeavor.
@@RundownReborn thank you,, so I take it if the new unit fits into the same area in theory it can work all the electrical has to be hooked up and the lines ran to the condenser or fan or whatever it's called outside and you would be good to go otherwise I'm guessing you need an entire AC unit at the end of the home, I'm trying to move 2 States away so it's that's a bit too time-consuming and expensive to try to do that I'll have one day to go look at it and make an offer, thx
@@TeeCee66 simply put, there will be at least a half a dozen solutions to your problem…all varying in cost and effectiveness. Feel confident that there will be a fix. The big question is how much it will cost.
@@RundownReborn Thank you!
I need this guy to finish a job that an unscrupulous HVAC guy never finish it.
The work crew was great!!!
Hey can anyone help me identify the tool he’s using @11:36 to do the cross break? Thank you in advanced
@Jorge - That is a sheet metal hand brake. His in the video might be homemade. Here is one online (affiliate link) that you can buy if you don't want to make one yourself. amzn.to/3dEIEFI
Thanks for watching!
@@RundownReborn does the item really weight that much? 220 pounds.
@@jvlkz11 😆 ha, I can’t imagine that. Wouldn’t be much of a “hand” brake then.
They probably weigh about 5-10 lbs.
I'm looking at a house wit a old boiler style heating system with central air with a air handler up stairs. I was thinking about converting it over to forced air. Haven't figured up the cost but I know it's going to cost 10 to 15k to complete. I hope it doesn't. 🙏
The system in the video was bare bones essentials and cost every bit of $10,000. So yes, be prepared to spend at least that. HVAC isn’t cheap. Thanks for watching!
None of this would pass code or inspection in my state flex can’t transfer from one floor to another it has to be hard pipe. The boxes they made can be bought and should have been sealed before wrapped.. the start collars have to be sealed .. the flex duct inner liner should be taped then zip tied then zip tie the outer insulation wrap.. there is tape for the lineset as the zip ties will come undone…
There was no inspection process for me. Just saying. The installers were reputable and the system is working well. Sometimes with these old houses - its a bit of a ship in a bottle situation trying to get the air distributed and requires creative approaches.
Now you know why complex, expensive homes can have horrible air flow issues.
Two story houses are hard to keep the warm air down and the cold air up! I agree!!!
Is it normal for a furnace to go up to 5000 degrees?
I am sorry, I do not know the answer to that question.
@@RundownReborn well mine does I think I might have been converted from an old incinerator
@@mistervacation23 you can always get a second opinion!
Is it difficult to turn over this aspect of design and installation after having so much hands on say in the rest of the home?
Not at all - especially since I do not know how to do HVAC by myself. Having pros do it will prevent me from screwing it up myself. 💪
What was the cost for installing this.
It was around $10-12,000.
What’s the sincere cost?
The system they put into my home took about 5 days and cost around $10,000 USD.
@@RundownReborn Wow, super cheap for a full blown system; ducting and all. Not to mention having to work with a camera in their faces lol
Dear Sir
Good afternoon.
This Is Uchhai, From New york Jamaica, i am very much Interested to do this type of work but I have no Experience, but if I get opportunity i can learn very shortly.
So that request to you if any opportunity for a Helping Assistant post I will be very grateful to you.
Best Regards
Uchhai
New york/Jamaica.
Best of luck to you!
@@RundownReborn Thank you Sir
No mastic and the way there putting that flex on you’re gonna have sweating problems and leaks later down the road
Duly noted! Thanks for watching!
Skip to 9:55 to see the most hack shit ever
Good to know
You're just like me got to fix it and leave it at the same time it stinks but what else are you going to do
True dat!
flex through basically the whole house? you are losing so much cfm. should be hardpiped. Also when someone asks how you do a load calculation you need to find a better answer...... appreciate the hardwork but you obviously just know enough to be dangerous. Wish my company were there to do it for you! goodluck
I appreciate the comment. Yes, they used flex throughout, primarily due to cost. The entire install was about $10,000. As far as load calcs, I suspect they have done enough of them on small houses that they had a pretty good idea of what they needed to do before they even arrived. The air conditioning is cold and the heat is warm. There is a little bit of imbalance between the upstairs and the downstairs that we can hopefully resolve later, but so far it’s a pretty good install. Thanks for watching!
Worst part is as bad as these guys are, half the pros are just as bad or worse. As a hvac guy this is hard to watch.
🤷♂️
It’s H Vac
Yes. HVAC (Heating, Ventilation and Air Conditioning)