Step 1: Dismantle the Baseboard Heater
Dismantle your baseboard heater. Take care not to damage the fins or injure yourself when removing.
Be careful when removing the fins.
Step 2: Remove Nails and Screws
Remove any nails or screws attaching the heater to the wall. You can use a screwdriver, hammer or drill to do this.
Complete the dismantling of the baseboard heater.
Step 3: Separate the Heater from the Wall Paint
If necessary, use a utility knife to separate the unit from the wall. Failure to take this step can result in damage to the wallboard.
Take care not to damage the wallboard.
Step 4: Lift the Heater from off the Floor
Lift the heater off the floor and tack it into place, giving you access to the space underneath. Clear away any debris and torn-up vapor barrier that you find. This will prepare the space for the foam insulation.
Clear away debris from underneath the heater.
Step 5: Insulate the Space Under the Heater
Using a reusable foam gun, draw beads of insulating foam in the space where the floor meets the wallboard.
Thoroughly apply the foam.
Step 6: Reattach the Baseboard Heater
Follow the steps in reverse to reattach the heat panels. Be sure to take these steps before the foam dries and hardens.
Reverse your steps to reattach the heater to the wall.