MyMason's Case Studies

 Fireplace Case Studies

    Nakkertok Fireplace Surrounds

    Two-Ton Chimney Supported, Fireplace Rebuild

    Fireplace Surround - Wood Burning Insert Installed

    Fireplace Fire Brick Replacement

    Fireplace Surround - Natural Stone

    Electric, Natural Stone Fireplace

    Fireplace Hearth Replacement

    Stone Fireplace

    Cultured Stone Fireplace & New Framing

    Cultured Stone Fireplace Surround

    TV Mounted on Stone Fireplace

    Restructuring Fireplace: Wood to Gas

    Drywall to Stone Fireplace

    3-sided fireplace: Cultured Stone

    Fireplace Removal, Damper Removal

 Chimneys and Brickwork Case Studies

    Chimney Repair

    Chimney Repair, Articulated Boom

    Custom Scaffold, Chimney Repair

    Lower-Chimney's Removal, Wall Restructuring

    Chimney Flue Replacement

    Concrete Chimney Cap as per Building Code

    Chimney - Sloped Side, Repair

    Chimney - Wobbly Chimney

    Brick Pillar

    Brick Garage Pillar Repair

    Window's Lintel Installation

    Brick Sill Creates Wall Damage

    Brick-to-Stone Window Sill Replacement

    Brick Retaining Wall Rebuild

 Stone Work Case Studies

    Stone Wall Rebuild

    Granite Resurfacing of Concrete Stairs

    Stone Step Rebuild

    Stone Stair Rebuild - in Winter

    Stone replaces Brick Door Sill

    Stone Retaining Wall Rebuild

    Dry-Stack Retaining Wall Rebuild

    Dry-Stack Stone Retaining Wall

    Flagstone Patio Rebuild, Expansion

    FlagStone Step Repair

    Stone Replacement

    New Interlocking Stone Walkway

    Re-setting Interlocking Walkway

    Tile Installation

 Algonquin College/MyMason Case Studies

    Cold Weather Masonry Rules

    3 New Cases Studies in 2015

    Salt and Concrete Testing

    Concrete Curing Stress Tests

    Concrete and Rebar Stress Tests

 Parging Case Studies

    Parging, Cement Board

    Parging Examples & Techniques

 Concrete Case Studies

    Broken Concrete Step

    Basement Window, Concrete Cut

    Basement Window, Concrete cut-out

    Concrete Walkway, Landing

    Concrete Stairs and Landing

    Concrete Stairs and Landing

    Concrete Countertop




    Case Study: Restructuring Fireplace: Wood to Gas

        Before and After


    The Assignment:
        Change the position of the fireplace:
        Move from offset to centre, from floor to elevated.
        Remove wood-burning fireplace, create space for gas insert.
        Replace hearth tiles, replace wall brick with stone.

Protecting the Home
We've place hardboard and plywood on the floor, covered it in tarp, and dropsheet.
We've placed plastic dropsheets and canvas dropsheets around the room, covering everything.

Finally, a hanging plastic dropsheet forms a barrier to separate the room from others.

Removing Brick
Chiseling removes the bricks one at a time.
This wall held about a ton of brick and cement, all taken to the dump.

The Brick Lintel
As the bricks come down the lintel is exposed.

Opening the Block Wall
Chiseling into the block wall, another ton of debris is removed.

Fireplace Stack Exposed
The interior flue for the furnace on the right, exposed.
The transition from firebox to damper to flue, on the left, exposed,
The inside of the outside wall's yellow bricks are visible in between the two.
Block Lintel Removed, Damper Exposed
The old block's lintel is standing on end, to the right
The damper mechanism is still in place, stretching across the opening.
You can see the blackened bricks rising up to the fireplace flue.
Hearth Tiles Removed
The ceramic tiles are removed, and an inch of concrete.
Stone will replace it.

The wood floor area had to be cut back on one side to make the hearth as wide as the fireplace.

Demolition Done
It's hard work removing two tons of debris.
I'm happy it's done, the cavity is exactly what we need.
New Lintel, Base Blocked In
The upper blocks are now supported with a new lintel.

The old firebox is filled in with concrete blocks.
A channel between the blocks allows the gas line to feed into the basement.

Hearth Stones Installed
The concrete was removed sufficiently to install these new stones.
Black Indian Limestone, with matching end pieces cut narrow and three full ones in the middle.
Gas Line Installed
The gas line is installed by a certified HVAC professional, into the channel provided.

MJR Mechanical was the provider. The gas line goes through the floor to connect with the gas line in the basement.

Gas Insert Installed
The insert is fitted into the void, resting on the new base, positioned at the height desired by the client.
The vent goes out a side wall.
Gas Connected
The gas line goes through this clean-out trap door to connect to the gas pipe in the basement.
The Vent
The insert vents out through the chimney's side wall. This chimney has been taken down and roofed over.

We drilled pilot holes through the brick to create the vent hole. The hole needed to be 84 inches above the driveway (or a walkway) for safety reasons. The right half of the picture shows the finished vent cover.

The Arriscraft Stone
Here you can see the stone with a saw-cut smooth side and where I've chiseled a break, with the grain showing in the break as it would in natural stone.

The stone is sold usually in a pallet-sized row, usually about 10 square feet of stone, so in this case we mixed two rows of one colour with four rows of the main colour, using four different sizes of stone in all.

The Stones Start Ascending
This stone is the Arriscraft Laurier, in Honey Brown and Bark Brown, in four sizes.
It is a full-bed stone, meaning it is 4 inches deep. It can be and usually is used for exterior walls. It is a man-made sandstone, formed by heat and pressure, and its grain is found inside as well as outside so that chiseling it apart one finds the same look inside as out. It looks very natural, and works like real stone.
Two ledges in .symetrical positions are installed using the stone itself, to provide ledges for candles, for flowers, for uses beyond the season in which the fireplace might normally be used.

The ledges could easily be chiseled off later if a new home owner didn't want them.

The warm, brown colours complement the home, feeling modern with the linear design fireplace but classic in the choice of stone.
Another View
This fireplace will heat the room without using a fan, and is not tied into the electrical system. It is operated by batteries and can heat the room to a desired temperature.



This page last modified: July 30 2011