Ideally, if you have or can install a programmable thermostat in your rental property, you can save a lot of money with the proper schedule. The ideal efficient temperature to set your house at during the summer is 76 degrees F, but if you still can’t get comfortable at 76 try following this schedule—During the day when you’re gone, set the temperature up a few degrees—78-80 degrees F. Then, program your thermostat to turn down to your comfortable temperature the hour before you come home. Do the same at night—have your thermostat go up a few degrees overnight once you’re asleep and then start cooling again in the morning before or as you wake up. By not running your AC all day and night, you can significantly reduce the cost of your utilities, especially in states where electric demand costs are higher during the working hours of the day when you’re not even home.
Commercial buildings will use pre-cooling or night flashing, which takes advantage of cooler nights and mornings and cools down the spaces with “free cooling”. In homes or apartments, this is done by either opening windows during the night or cross ventilating for 15 minutes in the morning. This is not always an option due to security concerns or for allergy sufferers. However, if your home or apartment is a tight construction and not very leaky (see more about what to do about sealing your space below or in our previous post) you can benefit from using your AC to cool down the house even further during the night. Spaces with little air leakage which are sealed tight will hold the cold a lot longer. More importantly with colder outside temperatures during the night, the AC is working more efficiently and using less energy when it is cooling. This is also the reason AC condenser units are installed on the north side of buildings where it’s shaded and cooler.
Blinds and curtains can multitask for you! During the day, try to keep any windows that have direct sun covered with blinds or curtains so the sun does not heat up the space and to create a barrier for the heat against the window. Blinds can also be mostly closed, but turned to angle up towards the ceiling to allow in natural light without allowing heating up the room.
However, when you are home, open blinds and curtains to allow in natural light and turn off any unnecessary lights, especially since the sun stays out so long during summer. This reduces your lighting costs, eliminates heat being produced by the light bulbs and allows your natural circadian rhythm to adjust with the sunlight.
Especially with window units and old houses, cold air escaping your rental unit can greatly increase your electricity bill and eat up a lot of energy. A leaky home loses 25- 30% or more air than a tightly constructed home. This is something EBE sees often when we conduct tests for air leakage in homes and apartments. Sealing your home will reduce wasted energy:
Ever been baking or cooking something in the oven and you feel like you’re roasting in the house? Try grilling outdoors! Even if you have a small backyard or tiny balcony/porch, there are tabletop size grills perfect for cooking outside of an apartment. These little grills usually use charcoal, so they don’t require gas. By cooking outside, you reduce the amount of heat being built up inside your kitchen, which causes your AC to work harder to cool the space. It also makes you feel hotter and more tempted to turn down the temperature of the AC, costing even more energy and electricity. By cooking outside you keep your home cool and get to enjoy some sunshine and fresh air!
*Please note we are not affiliated with any of the listed products, these are products we have used in the past and have proven to work for us or our clients.