Access Doors


Hey Matt, Wich of the above listed doors is easy to install in your professional opinion?
Send me a private message if you dont want to advertise.

David Saulque

Senior Moderator
NFPA 7.5.4 in accordance with UL 1978 RE: Installation of access doors. The door must be made of the same materal and have a gasket rated 1500 degrees. Flamegard is UL listed and is marked on the door. I am not sure what accepted means-???????????


UL Listed and UL Approved are 2 different things .. In order to become approved the product must undergo a series of test by underwriter's lab as specified by insurance companies and such.. The test once completed successfully we grant a 2 year UL approval.. With the need for retest after 24 months.. UL Listed is a product that is awaiting the UL testing and is listed as a product that is applying for testing ..This is what I came to understand from the insurance commisoner of Mississippi..
I buy all my access doors and panels from Heiser Logistics.. But of course the are my vendor for fire equipment as well....

If you would like , When you need a price on a panel give me a call and I can price them for you and also I can have them drop shipped right to your door.


Mat couldn't you switch out the screws that come with the flame guard access doors with longer ones?
I also agree about the gasket on the duct mate doors. I have never seen one that still has the gasket in place a year later, unless it has never benn removed.
NFPA 96-2004 Chapter 3 Definitions 3.2.1 * and 3.2.2* and 3.2.3 and 3.2.4*and 3.3.1and 7.4.3 will explain all of this. I assume all of use have a copy of NFPA 96-2004? Unless your state or local jurisdiction has adopted this model code into law, it is not law.
A.3.2.1 Approved. NFPA does not approve, inspect, or certify any installations,processes, equipment, or material Remember this when any one claims to have NFPA approval, because NFPA does not approve any thing, even $16,000 schools.

Douglas Hicks
General Fire Equipment Co of Eastern Oregon, Inc
NFPA Member 0123425


Get a Dewalt wing nut driver, the 18 volt is heavy but will twist em off in a couple of seconds

Michael T

Thanks to all for the info and Hi Jackin my thread LOL. Got a Flameguard door to install. I like the Ductmate doors the best but there wasnt one the size I needed.
In following the fire blanket response, we have hinged the blanket pad that covers the door with SS straps and strapped it in place over the Access door. No need for longer bolts or pins.


The s/s straps are an excellent idea. Michael should patent that - he will no longer need to clean flue. In respect to the access door covering - often we find them so saturated with grease that we just toss it and use a kitty-litter pan for the next servicing. Other than noise suppression, is there any reason to replace the covering?

NFPA 96-2004 4.2.1 "Clearances to combustables 18 " , clearances to limited-combustables 3 " , to non-combustables 0 ". " Any reduction in combustable clearance requires some kind of insulation. For some reason, if any insulation is required any where along the duct, all of the duct needs to be wrapped. That is why above the ceiling tile is wrapped, even though there is more than 18" of clearance to combustables. We do not normally see less than 18" until we extend the duct through the trusses or roof. A problem I often see is the duct is wrapped after the hood/duct is installed. It is impossible to band the insulation because there is no room for the banding tool. We normally weld the duct to the hood, wrap the duct and then install the whole unit through the ceiling/roof.

I try not to disturb the insulation over the access panel. I cannot get them to fit again properly.

To answer your question, I would not be too concerned unless there was 18" or less clearance to combustables. Have you thought of using long hose clamps to hold the insulation in place? I have done that at times.

For an installation manual google "Fire Barrier Duct Wrap 15A"

Douglas Hicks
General Fire Equipment Co of Eastern Oregon, Inc

Michael T

kmjt1021 said:
Michael, do you have a pic of the fire blanket hinge jobby thingy you are talking about.
Follow up on the thingy jobby. I will try to paint a picture for you. No photos at this time. First I didnt invent anything, I just improved on something already in place.
There are approx 1" wide SS bands wrapping the duct. These hold the blanket in place. The joints in the blanket is taped with silver foil duct tape. The pillow that covers the Access doors is foil faced on both sides. SS straps are attached to one of the nearest bands at a right angle. I found the straps laying on top of the duct. The installers must have left them there for me. These cross over the pillow which cover the access door. The straps are taped to the pillow with foil duct tape. This creates the hinge. As you swing it open the door is revealed. Swing it closed and secure the end and it covers the door with the pillow. This makes a real simple thingy jobby.
Very simple young jedi. Feel the power of the cleanside. Individual results may vary according to application.
On some other doors I have seen hat pins used. What we used to call a hat pin were used to hold insulation in place in verticle situations. This was a stiff wire mounted on a flat base. The length was dependent on the thickness of the insulation, 6" to 10". The base was glued in place with liquid nail and the insulation was pushed over it , thus holding the blanket from falling. I have seen these on duct systems to hold the fire blankets in place, but they were spot welded in place instead of glue. Under heat the glue would release. During a fire this could be a problem, the fire blanket falling off, know what I mean. Anybody see these used?