Grimsby stove and finance Ltd 4M stove. Unknown manufacture number and spacing requirements

[Bkm91]

Hello, I just bought this stove off a friend for my workshop. I want to confirm the spacing requirements but I can't find a model number to search online. Any help would be greatly appreciated. Photos attached.

It says " Grimsby Stove and Furnace Ltd, Grimsby Ont" and "4M" on the top.

 

[begreen]

Unlisted stoves need 36" clearance in all directions. With proper shielding, this can be reduced to 12". This includes the side bench and door trim.

Note that the metal on the rear wall does not qualify but might if properly installed on 1" non-combustible spacers, with a 1" or larger gap at top and bottom.

Wood Stoves and Fireplaces Thread 'WOOD STOVE WALL CLEARANCES - PRIMER'

Oct 18, 2015

Written by Ken Rajesky, Hearth Industry Expert.

After the difficult decision of what stove to buy has been made, you’ll need to install the stove safely. However good the stove is, it’s still not safe unless installed to manufacturers specifications.

First, review the owners guide that came with the stove. Discuss the installation with your retailer. If you have further questions, contact the technical service department of the manufacturer. The Hearth.com Forums (on this site) can also help you get answers about stove clearances.

Firebrands and test booth wall...

• webfish
• wood stove
• Replies: 0
• Forum: Articles

• 

 

[Bkm91]

Unlisted stoves need 36" clearance in all directions. With proper shielding, this can be reduced to 12". This includes the side bench and door trim.

Note that the metal on the rear wall does not qualify but might if properly installed on 1" non-combustible spacers, with a 1" or larger gap at top and bottom.

Wood Stoves and Fireplaces Thread 'WOOD STOVE WALL CLEARANCES - PRIMER'

Oct 18, 2015

Written by Ken Rajesky, Hearth Industry Expert.

After the difficult decision of what stove to buy has been made, you’ll need to install the stove safely. However good the stove is, it’s still not safe unless installed to manufacturers specifications.

First, review the owners guide that came with the stove. Discuss the installation with your retailer. If you have further questions, contact the technical service department of the manufacturer. The Hearth.com Forums (on this site) can also help you get answers about stove clearances.

Firebrands and test booth wall...

• webfish
• wood stove
• Replies: 0
• Forum: Articles

• 

Thank you! Yes the metal on the wall is screwed into 1" perforated steel tube on either side. And open at the top. Since the clearance requirement you listed is only 36" does that mean I can remove the top shield?

 

[begreen]

It may be the picture, but the rear shield does not appear to have at least a 1" gap at the bottom. This is necessary so that air can freely convect up behind the wall shield. If the stove is connected with single-wall stove pipe, then the ceiling shield may be necessary to reduce the stove pipe clearance from 18" to 9".

 

[Bkm91]

It may be the picture, but the rear shield does not appear to have at least a 1" gap at the bottom. This is necessary so that air can freely convect up behind the wall shield. If the stove is connected with single-wall stove pipe, then the ceiling shield may be necessary to reduce the stove pipe clearance from 18" to 9".

Thanks! Here are some better photos. The rear shield is 7' and is screwed into a 1inch 3' pipe on either side leaving a large gap on either side. Maybe I should trim a little more off the bottom

 

[begreen]

Yes, it's the wrong way to do it. There should be no horizontal, air blocking, attachments. The 1" shims need to be vertical and the shield open at top and bottom so that air can freely convect behind the shield.

 

[Bkm91]

Yes, it's the wrong way to do it. There should be no horizontal, air blocking, attachments. The 1" shims need to be vertical and the shield open at top and bottom so that air can freely convect behind the shield.

Thank you! The shims are vertical but the top is blocked by the shield on the ceiling. I'll lower the shield on the wall so there is a gap before the ceiling shield. And I'll shorten the shield so it doesn't go all the way to the ground.

 

[Bkm91]

Yes, it's the wrong way to do it. There should be no horizontal, air blocking, attachments. The 1" shims need to be vertical and the shield open at top and bottom so that air can freely convect behind the shield.

Or do you mean the shims should be the full length of the shield?

 

[begreen]

They can be full length vertical supports, but that isn't necessary. Most folks install the shield on non-combustible standoffs. These are often ceramic or short 1" pieces of 1/2" copper pipe. The article posted above goes into more detail.

 

[Bkm91]

They can be full length vertical supports, but that isn't necessary. Most folks install the shield on non-combustible standoffs. These are often ceramic or short 1" pieces of 1/2" copper pipe. The article posted above goes into more detail.

The inspector told me the clearance is 48" for non-listed stoves not 36".

 

[begreen]

That's the first I've heard that. It's 36" according to NFPA211.

 

[Bkm91]

That's the first I've heard that. It's 36" according to NFPA211.

36" only if it has a metal jacket or casing. Older stoves do not apparently so 48"

 

[Burnin Since 1989]

That's the first I've heard that. It's 36" according to NFPA211.

Oh Canada!

WETT

Reducing Clearances to Combustibles | WETT Inspections for Barrie | Orillia | Midland | Alliston

WETT Certified Inspections for Barrie, Alliston and Orillia. Wood Stoves, Fireplaces and Pellet Stoves Inspected. Report issed at inspection. Call Roger at 705-795-8255

wett-inspection.com

Clearances for an uncertified stove​

The clearance for an uncertified radiant stove is 1200 mm (48 in.) and for a stove with a sheet metal jacket or casing the clearance is 900 mm (36 in.). The clearances are large because they apply to all shapes, sizes and designs of stoves that have not been tested to determine the actual clearances.

* Shielding consists of protection such as external jacketing or metal heat shield attached to the sides and rear of the appliance and spaced out at least 50 mm (2 in.) by non-combustible spacers, with provision for air circulation at bottom and top. Clearances are measured from the outer surface of the appliance to the combustible material.

 

[Bkm91]

Oh Canada!

WETT

Reducing Clearances to Combustibles | WETT Inspections for Barrie | Orillia | Midland | Alliston

WETT Certified Inspections for Barrie, Alliston and Orillia. Wood Stoves, Fireplaces and Pellet Stoves Inspected. Report issed at inspection. Call Roger at 705-795-8255

wett-inspection.com

Clearances for an uncertified stove​

The clearance for an uncertified radiant stove is 1200 mm (48 in.) and for a stove with a sheet metal jacket or casing the clearance is 900 mm (36 in.). The clearances are large because they apply to all shapes, sizes and designs of stoves that have not been tested to determine the actual clearances.

* Shielding consists of protection such as external jacketing or metal heat shield attached to the sides and rear of the appliance and spaced out at least 50 mm (2 in.) by non-combustible spacers, with provision for air circulation at bottom and top. Clearances are measured from the outer surface of the appliance to the combustible material.

Haha, lesson learned. Hopefully this information helps someone else in the future!

 

[Burnin Since 1989]

Haha, lesson learned. Hopefully this information helps someone else in the future!

Exactly! 48" is a lot of space from combustibles.

 

[begreen]

Oh Canada!

WETT

Reducing Clearances to Combustibles | WETT Inspections for Barrie | Orillia | Midland | Alliston

WETT Certified Inspections for Barrie, Alliston and Orillia. Wood Stoves, Fireplaces and Pellet Stoves Inspected. Report issed at inspection. Call Roger at 705-795-8255

wett-inspection.com

Clearances for an uncertified stove​

The clearance for an uncertified radiant stove is 1200 mm (48 in.) and for a stove with a sheet metal jacket or casing the clearance is 900 mm (36 in.). The clearances are large because they apply to all shapes, sizes and designs of stoves that have not been tested to determine the actual clearances.

* Shielding consists of protection such as external jacketing or metal heat shield attached to the sides and rear of the appliance and spaced out at least 50 mm (2 in.) by non-combustible spacers, with provision for air circulation at bottom and top. Clearances are measured from the outer surface of the appliance to the combustible material.

Thanks for sharing that. It appears to be convering all bases. Canadian code is more conservative.