By August, every conversation in the valley eventually arrives at the same two subjects: the heat, and what the heat is doing to the electric bill. When it is 102 for the third week running, the cooler or AC runs from noon to midnight, and Southern California Edison sends you a number that ruins your morning coffee.

Here is the honest news: the cheapest cooling in any house is the heat you keep out in the first place. Most Kern River Valley homes (and especially the older cabins and manufactured homes around the lake) leak heat in through the same handful of weak points, and the fixes are cheap, fast, and on our shelves at Lake Isabella True Value.

Stop the sun before it hits the glass

A single-pane window in direct afternoon sun is basically a space heater you cannot turn off. The west- and south-facing glass on your house is where the fight is won.

• Shade cloth is the valley's secret weapon. A run of 70 percent sun shade cloth rigged over a west window, a patio, or the dog run drops the surface temperatures underneath by a shocking amount. It is the same material growers use, it survives our sun and wind, and it costs a fraction of an awning.
• Reflective window treatments bounce heat back out. Reflectix double-bubble foil insulation, cut to fit and set in the frame of the worst-offending windows during the afternoon hours, works like a windshield sunshade for your house. It is not fancy; neither is a 300-dollar bill.
• Even simple window insulation film adds a dead-air layer to single-pane glass that pays off in both July and January.

Seal the leaks (yes, even in summer)

Weatherstripping gets sold as a winter product, but air leaks work both directions: your cooled air pours out of the same gaps the winter drafts come in through. Walk the house on a hot afternoon and feel around doors, windows, and the swamp cooler duct.

• The gap under an exterior door is usually the biggest single leak; a door sweep or a garage door bottom seal closes it in fifteen minutes.
• Silicone weatherstrip tape seals leaky window sashes and survives our heat far better than the foam kind.
• If you run a window AC unit in one room, foam AC weather seal around the unit stops it from cooling the outdoors.
• For the gaps around pipe penetrations and the cooler duct, a can of Great Stuff foam sealant closes them permanently for six dollars.

Move the air you already paid to cool

Air that is moving feels six to eight degrees cooler than air that is standing still, which means fans let you run the cooler less without anyone complaining.

• A Lasko 20-inch box fan in a hallway pushes swamp-cooler air into the back bedrooms that never quite get cool.
• Ceiling fans are the long-term answer for the rooms you live in. A 52-inch Hunter moves serious air, and the outdoor-rated models work on patios, where valley evenings are actually pleasant once the sun drops behind the ridge. Set the blades to blow down in summer, and turn fans off in empty rooms; they cool people, not spaces.

Two habits that cost nothing

1. Run the house like a desert house. Open up in the early morning when it is 68 outside, flush the place with cool air, then shut windows and drop shades before 9 a.m. Your grandparents did this without being told.
2. Shift the heat-makers to evening. The oven, the dryer, and the dishwasher all fight your cooler. Run them after sundown and the house stays ahead instead of catching up.

The bigger swings, when you are ready

If the house still cannot hold temperature, the next tier is attic insulation, a cooler upgrade sized correctly for your square footage, and shading the cooler itself. Those are bigger conversations, and we are happy to have them at the counter with your square footage and a photo or two.

Every item in this post is in stock at Lake Isabella True Value, 6050 Lake Isabella Blvd, and you can check stock anytime at lakeisabella.shoptruevalue.com. Come in with your worst window or your last electric bill, and we will help you pick the fix that pays for itself first. Stay cool out there; October is coming, eventually.