Humidifiers improve the amount of moisture in the air, but can be costly and require frequent cleaning to prevent dust mites and mould growth. Before electric-powered humidifiers were available, radiators and pots were the only option for adding moisture to your home. As the radiator warms the bottom of the pot, the water's temperature increases and evaporates into the air to improve humidity, according to CBS News. Be sure to keep hot pots of water away from children and pets to avoid accidents.
Fill a clean pot with 3 to 4 inches of tap water, and place the uncovered pot on top of the steam radiator.
Place a water-filled pot in each room, or place several pots in a single room for larger rooms that lack moisture.
Refill the pot every 2 to 3 days, or whenever there is 1 inch or less of water remaining in the pot. The heat from the radiator warms up the pot's water and slowly distributes moisture.
A hot bath also adds moisture to the air, as the steam from the water is released into the air until the water cools, according to Apartment Therapy. Leave the tub filled with water until the bathwater is cool to aid in increasing your home's humidity.
Do not allow the water to completely evaporate from the pot, as the radiator can scald the bottom of the empty pot.