Installing a Boiler Cupboard

You may be remodeling the basement or garage where your hot water boiler is located. Whatever your need to enclose the unsightly equipment, a cupboard is a great idea. Not all systems can be boxed in successfully, check your owners manual for manufacturers recommendations. A hot water boiler system has more than a hot water tank; it includes pipes, valves, switches, hoods, gauges and possibly an expansion tank. The entire system will require a custom designed cupboard.

Tools
  • Screws
  • Nails
  • Paint
  • Hammer
  • Drill
  • Wood
  • Hardware
  • Saw
  • Protective goggles
  • Protective gloves
  • Wood glue
  • Sander
  • Saw horse
  • Tape measure
  • Pad and pencil
Step 1 – Measure

You may make the design as simple or intricate as you like. You will need simple measurements for whatever type of cupboard design you decide on. Consult the owner’s manual for instructions on what is needed to box in the boiler. At the very least allow room for the boiler to be opened and serviced, there should be a 50mm air gap around the boiler fresh air must be able to flow around the area. This can be accomplished by leaving a 2 inch to 3 inch gap at the bottom of the cupboard and not enclosed the top. Measure the boiler and include the condition the manufacturer recommends for space allowance.

Step 2 – Purchase the Materials

All of the materials for your boiler cupboard can be purchased at a local hardware store. Use a good quality lumber. You may only need to enclose three sides of the boiler as some boilers are installed next to a wall, which can act as your back wall. Think about affixing the sides of the cupboard using angle brackets since the back will probably need to be removed at some point.

Step 3 – Cut the Lumber

Cut all your lumber to the measurements of your design. Cut any ventilation holes you need.

Step 4 – Turn Off the Boiler

Before beginning any work near your boiler turn off the power at the breaker. Disengage the water source.

Step 5 – Assemble the Cupboard

Build the sides of the cupboard or attach the sides to a wall with angle brackets. As with any wood furniture or cabinetry, always use wood screws and run a thin line of wood glue on one side of the wood before inserting screws. Using the hinges attach the door or doors to the cupboard. When installing a door tighten the screws just short of completely. Use a level and make any adjustments to the door before tightening the screws. Attach the door knobs and any other hardware you have chosen.

Step 6 – Turn Power On

Turn the power back on to the boiler and turn the water back on. The hot water boiler system will refill all the tanks and set all the gauges back to the original setting. Once the system has had time to reheat the water and build pressure, check the pressure gauges. There should be 12 psi registering on the gauge.