Henry Furnace & Henry Moncrief Furnace history & information.

Here we provide free downloadable copies of Montcrief installation and service manuals and give age dating information and company history.

Henry & Moncrief Furnaces: Age, Manuals, History

Moncrief furnaces, made originaly by the Henry Furnace Company, is currently a division of York International.

• Contact: YORK HVAC AGE & MANUALS
• MONCRIEF FURNACE CATALOG 1950 [PDF]
• Also see LUXAIRE HEATING & AIR CONDITIONING

Wiring diagram for the Moncrief SSL137MF furnace

Above, this wiring diagram was provided by our reader, Shane Poluszny.

History of the Henry Furnaces & Moncrief Furnaces

The Henry Furnace Company who made Monrief furnaces was a Medina Ohio company.

Above: a view of the Moncrief SSL137MF furnace, courtesy of InspectApedia reader Shane Poluszny.

Some history of the Moncrief furnace and Henry Furnace Company is revealed by a review of litigation between a wholesale and retailer of heating equipment:

The facts established by the pleadings and the evidence may be briefly noted.

Plaintiff, The Henry Furnace Company, since 1943, (per some union documents, possibly 1941 or earlier) has engaged in the Cleveland area in the manufacture of furnaces bearing the trade name and label of "Moncrief Furnaces."

My understanding is that Henry Furnaces was purchased by Luxaire Inc. in turn joining York International, currently owned by Johnson Controls.

Luxaire, a Westinghouse division, purchased by York marketed along with Fraser-Johnson, also these brands: Home-Air, Moncrief,

Some of the Moncrief furnaces are operated by gas, others by oil, and there are various models in different price ranges.

Plaintiff has been the only manufacturer of Moncrief furnaces in this area since 1943, when it acquired by purchase the plant, patents and all other rights of The Henry Furnace & Foundry Company, which latter company together with its various predecessors, Henry & Scheible Company,

The T. E. Henry Furnace Company and Henry Miller Foundry Company, had manufactured at least since 1905 a furnace similarly known in the trade as a Moncrief furnace.

The Henry Furnace & Foundry Company, and its immediate predecessor, The T. E. Henry Furnace Company, prior to the acquisition of its plant and assets by plaintiff, had sold its product, the Moncrief furnace, throughout the United States, with the exception of the states of Georgia, Florida, North Carolina and South Carolina.

Under a consent decree entered into on September 30, 1914, The T. E. Henry Furnace Company and one S. P. Moncrief, in a law suit in a Georgia court, had provided that S. P. Moncrief and his associates should be entitled to the exclusive use of the trade name, "Moncrief," in the four states mentioned; that in the states of Alabama and Mississippi the said Moncrief and The T. E. Henry Furnace Company should be entitled to use the trade name, "Moncrief," in common; and that

The T. E. Henry Furnace Company, its successors and assigns should be entitled to the exclusive use of the trade name, "Moncrief," on furnaces sold in all other states of the United States and in foreign countries.

(Plaintiff's exhibit 26.)

It should be added that there is testimony in the record that in Dallas, Texas, a company under the name of Moncrief Furnace & Manufacturing Company at the present time is engaged in selling a furnace known as the M.F.C. Deluxe but its field appears definitely limited to that state.

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Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

Looking for Moncrief (Luxaire) Service Manual & Repairing a Failed Blower Assembly

Above; a data tag for a Luxaire gas furnace, posted by reader Posluzny on our MONCRIEF furnace page. This Luxaire gas furnace was manufactured by the Luxaire, Inc. facility in Elyria, Ohio 44036. We think it may date from 11/1976 - Ed.

I am looking for a service manual for a Moncrief SSL137MF. I'm assuming this thing is gonna start giving me more grief in the near future so I'd like to be prepared. The blower motor is coming out in the next few days for new bearings, she's getting pretty noisy. - Shane Poluszny 2025/12/23

Moderator Reply:

So sorry Shane, I've been searching for free downloadable Montcrief furnace manuals for years without more luck than what's found on the page above. There are some advertising brochures for Montcrief furnaces for sale on various platforms - none of which looked helpful nor worth buying for our purposes here.

It's possible that some of the Luxaire manuals (link given in the article above) would help you out.

Can you post photos of your system and of its data tag?

And have you looked inside the covers for (and post please) a photo of any wiring diagrams?>

Daniel

Shane followup:

Thanks a bunch Daniel!

I honestly didn't think I would get a response from this site. I'll send a few pics of the full unit tomorrow morning. Excited to learn more about this thing, I enjoy old technology. Happy holidays.

This is what I'm trying to fight right now, the rubbers are blowing out. I'm gonna weld a collar locking flange bearing on the back side of each journal to solve the problem.

Reply

Moderator Reply:

In case it helps, there are other repair alternatives for an old Montcrief furance with a failing blower assembly.
Usually manufacturers use rather standard off-the-shelf parts for much of their equipment.

You might find that you could replace the entire blower fan assembly with a new unit that is a close fit.
I'd consider taking the old blower fan assembly to a local HVAC dealer to see if they can match it.

The blower squirrel cage fan assembly I'll show below is sold by online vendors such as Zoro and costs about $150. - not including the blower motor. The part is identified as Blower, BD, Less Motor, 10-1/4 Wheel, Mfr #9005421 Zoro # G8526603

Product description: Blower, Wheel Type Forward-Curved, Drive Type Belt Drive, Includes Drive Package No, Assembly Unassembled, Wheel Diameter 10 1/4 in, Minimum Airflow 4,000 cfm, Maximum Airflow 4,450 cfm, Maximum Static Pressure 2 1/2 in wc, Maximum Inlet Air Temperature 250 Degrees F, Shaft Diameter 3/4 in, Bearing Type Ball, Wheel Material Steel, Housing Material Steel, Wheel Width 9 1/2 in, Number of Inlets 2, Inlet Diameter 8 in, Outlet Shape Rectangular, Outlet Height 10 1/4 in, Outlet Width 11 3/4 in.

And (you probably know this) though you posted and we're discussing finding a manual for and repairing your gas furnace on our Moncrief furnace page, the data tag on your furnace claims origin with LUXAIRE HEATING & AIR CONDITIONING - so we might have luck searching for a

Luxaire Gas Furnace Manual Model SSL137MF, Series NAESE gas furnaces, probably from the 1970s. I've searched for that phrase and also I often search for a manual using just the first part of the model number such as Luxaire Model SSL Furnace Manual - so far without hitting the specific manual for your exact furnace

Watch out: I also found that repair clinic repairclinic.com offers repair parts for some older Luxair furnaces, at https://www.repairclinic.com/ProductDetail/1414290 listing parts for the Luxair model SSL137M but really? When we scroll through the page every Luxair part is listed as "No Longer Available" - ick -

So we're back to recommending replacing subassemblies with modern versions.

Watch out: there is also, unfortunately, a plethora of spammy websites that respond to searches for HVAC manuals - we do what we can to avoid them all - Daniel

 

How Can I determine the age of a Moncrief furnace made by Henry Furnace Company

I am trying to determine the age of a Moncrief furnace made by the Henry Furnace Company Model L-95 Series 4. There is no serial #. It is maroon with chrome trim - Matt Falk Aire Serv - 3/29/2013

Reply: Henry Furnaces & the Moncrief furnace name

Matt,

The Henry Furnace Company who made Monrief furnaces was a Medina Ohio company.

IF data tags were legible you'd find a 3-digit series number (perhaps like 622) equivalent to a model, or an actual Model Number (L150) and a serial number sometimes in the format A-620-22-4-B.

With no data we can't know the age of yours, though sometimes there will be a clue of the "at least" age by noting data on the equipment service tag or on a date written on the original instructions stuffed up in the framing overhead.

Without any information you can stil bet the Moncrief is more than 20 years old, more likely from the 1950's.

The "safe" advice is to declare a 50-year old heating furnace obsolete, and past due for replacement.

A more thorough assessment by someone wanting to put off buying a new furnace would be a thorough cleaning, inspection for damage or heat exchanger leaks, tune-up, and efficiency measurement if the system was found safe and operable.

Be sure that any efficiency assessment is done after cleaning and tuning and a safety inspection.

See MONCRIEF FURNACE - HENRY FURNACE AGE & MANUALS furnaces that may be helpful. That catalogs 1950's era Moncrief heating equipment and gives historical details and the chain of owners and marketers of both Henry furnaces and Moncrief furnaces.

 

Are there replacement parts for the gas pilot light on my Henry Furnace Company Series 3 Furnace?

I have a Henry Furnace Company Moncrief furnace Series 3 that worked fine until pilot lighter broke---are there replacement parts anywhere?
JI Wisconsin - 2022-12-20

Reply by (mod) - Yes there are online vendors selling replacement parts that can work on older Henry Furnace CO. Moncrief Furances

Possibly, yes., JI, depending on just what part you need. Online vendors as well as your local HVAC supplier sell replacement parts ranging from furnace controls to complete blower or even burner assemblies and safety switches.

Shown here is a gas pilot light assembly - of course this may not match yours.

Most furnace parts are standard off-the-shelf products used across many furnace brands and models.

Not knowing exactly what's broken I can still suggest a fix - if a bit vague: pilot lights, thermosouples that sense the pilot light and control the gas valve, and gas igniters are generic parts sold by HVAC suppliers; you can almost certainly take your existing parts to your local heating supplier and buy if not an OEM a generic replacement.

Post a photo of your pilot light and igniter or broken parts and of the furnace data tag and we can comment further.

And see our gas pilot light parts repalcement and pilog light repair advice detailed

at GAS BURNER PILOT LIGHT PROCEDURE 

 

What are the Age & value of a Moncrief furnace model 36c84

I have a Moncrief furnace model 36c84 can you tell me how old it is and what is its worth ? - (Oct 19, 2019) Chris

Reply: Here's an example of a Moncrief / Luxaire Furnace Serial Number Decoder to guess at its age

Chris

You will need the serial number for your heater to decode is age. The brand and model number are the starting point but they're not enough.

You could leap directly to this link

MONCRIEF FURNACE - HENRY FURNACE AGE & MANUALS furnaces - [your request has been copied to the Moncrief / Henry Furnace page]

There you will see that more information is provided also linking to the heater equipment company name HENRY FURNACES

If you'll be kind enough to attach a photo of the data tag for your furnace I'll be glad to look at it directly myself.

An example age decoder is given for the data tag above in this discussion where the Moncrief/Luxaire furnace S/N gives us this example

S/N 117600015227

A reasonable guess at decoding the age from this Moncrief/Luxaire serial number is

S/N MMYY12345678 or month 11, 1976 - if the age of the home makes that guess possible, I'd say it's reasaonable. - Daniel F.

About its market value? OPINION: Probably zero as a resellable item, though if it's working reliably, it would have value to the owner of the building where it's installed.

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