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It's like any other space...do a manual J, size it to that. Doesn't matter if it's a wall or a floor unit. Air moves around, heat moves to cold.

Also, wanted to ad, the AF-10, mobile home furnace burner, is really a modified AFII. It creates much higher static pressure over an AFG, so you shouldn't replace it with an AFG

Why isn’t this tech advising you about your burner situation? Every part of a burner can be replaced if necessary. It can also be properly checked.
Make/model number of furnace/burner?
I’d...

It’s really bad on my iPad (IOS). The page loads very slow and freezes until same ad loads as a floater and stationary.

I think you’re pretty close with the heat loss. Here’s my guess based on the limited info.

If your boiler ran non stop on the coldest days of the year (design temp), then it's properly sized. If it didn't, and I bet it didn't, you're existing was oversized.
The main number I would...

https://www.supplyhouse.com/Jet-Swet-6100-JET-SWET-Jet-Pack-1-2-to-2-with-Heavy-Duty-Carrying-Case?utm_source=google_ad&utm_medium=shopping_neutral&utm_campaign=Shopping_Neutral_Returning_users&gad_so...

I have all kinds of weird, and not so weird stuff.

Hey TB, where did you get that spreadsheet/calculator...and do you share :) ?

They're not the same port to port length.

Any dead smurfs laying around?
Or what @pecmsg said.

I've batted this around for years...I'm still with quickbooks, since 2002.

Will I actually save money?
Will the contractor do a proper heat loss calculation and not oversized the equipment?

Ding ding ding…
Mods, can I post a link to a how to article?

Duplicate post

Here ya go, if you must know...lol

I’ve been manifold-less since getting FP wireless probes a few years now. I like the FP app, and MQ. MQ works with either. I keep a stubby for recovery.

It’s been very hard to get nozzles like you used to. You have a tech that was knowledgeable enough to properly lower the pump pressure to give you the same flow rate, then perform a combustion test...

The other thing to consider is maybe it always had that nozzle in there. Maybe whoever commissioned it, dialed in better combustion with that size nozzle.
You don't perform combustion tests,...

You probably should've checked the HX. If that was compromised, then she wouldn't have an option.
I also would've price the blower replacement higher.
Hey all you can do is give them their...

I would like to see a copy of the full combustion report. Probably didn't have that exact nozzle, and he might've adjust the pump pressure to match the flow rate.

Please take the ridiculous...

I bought it. It's very well done. Contains a lot of info you'd never get (easily) from a manufacturer as far as troubleshooting. It's also a great book for newbies.

I keep a roll of this on the truck to make gaskets, 1/4"-Lynn MFG# 9452. I don't think the picture accurately shows thickness. They also make 1/8" sheets.

Guys, this is an OPEN forum where the...

Just think about how you would (you can't) clean it.

Looks nice. Too bad they didn’t let you paint the wall and the floor, would’ve popped.

$1.00, or $20,000...or something in between.

Who is John Galt?

First of all, a professional would call it an air tube. Don’t listen to other people who don’t know what they are talking about.
If there was rot, it should be replaced.
The air tube, end cone...

I don’t have an answer, and I can’t understand their explanation.
But I do have that wrench. What I really don’t like about it is how easy it is to bump any button and change a setting while...

It's missing the OP's post, but that seems to be in another thread. Can you merge them?

That is not always true. What conclusion would (could) you consider, if you are adding air and the CO goes up?

Maybe you were moving it when I was posting?

@kdean1. You moved the post but the other post stayed, along with the comments. It looks like I started the post.

The company who delivered oil to the wrong house needs to deliver to your house at no extra cost to you.
This is a potential problem with COD oil companies and the people who use them. Most oil...

Hello All

This is about a heating oil problem, not strictly and HVAC equipment question. Please let me know if this is the wrong place to ask this (and maybe suggest a better one).

This is an...

Sounds more like a restriction, what's the vacuum? Look up Suntec's manual online for how to properly test and diagnose a fuel pump.
I wouldn't even bother trying to fix it. But if you replace it,...

If your oil tank is ok, I'd keep the oil and like @slctech said, dual fuel, HP and oil.
Most important in to have the equipment properly sized, and make sure your duct work can handle it.

Tread carefully with new construction. Builders are notoriously known for sticking it to sub contractors. The fact that a builder doesn’t have a hvac design, even a wrong one, is troubling to me. ...

First a proper heat loss should be done to determine the amount of heating and cooling btu's you actually need.
Ductwork can (and should) be evaluated by someone who understands air flow. Visual...

Why are you digging up and posting on 10 year old threads? If you need to get your post count up, try some current ones.

If it’s for your own house and a new install, most of those tools you should only need once.
I know you don’t like this answer but find someone in the biz, pay them to install. Offer to do the grunt...

I think we need a video on this

Merry Christmas everyone!

One my brother had taught me on a complicated board replacement was he left all the colored wires on the terminals on the board and rather then trying to draw out a wiring diagram or take a picture,...

I'm sorry for your loss but I’m afraid I don’t have a much good news for you. Most of the tools/equipment you’ll be lucky to get 50 cents on the dollar.
The customer list, without contracts, is...

Especially if it's oil, at a minimum a triple pass boiler. No pin boilers like the WM. They never get cleaned properly, and will start losing efficiency when dirty.
First you must properly size. ...

Can you do a radiant floor or ceiling?

There's nothing 'cheap'. Recording indicates special need for sound, and probably humidification/dehumidification.

Lol. did you send this post in on your American made Computer or your American made iPhone?

Looks great. Is your life insurance, homeowners insurance policies up to date as well as a current will?