In-laws have warm lake house for the holidays

My in-laws have a gas well located on their property.

This provides them access to free natural gas. It costs them nothing to heat their home, use the oven plus run the warm water heater. Since the two of us live in an area that is well-known for our dire Wintertide weather, this is actually advantageous. It costs our wife plus I a small luck to heat our house. Both of us set the control equipment as low as possible plus bundle up in layers of jackets in an attempt to reduce the strain on our budget. My in-laws take full advantage of their free gas. The whole family gathers at their lake house for Thanksgiving plus Christmas. Both of us all have l received to wear shorts plus tank tops. It doesn’t matter what the outside weather is, the lake house will be horribly warm. My mother plus father-in-law have no qualms about turning the control equipment up to 85 degrees. It’s so warm that everyone is wet with sweat within multiple minutes of arriving. Both of us all argument over who gets to take out the garbage just for the chance to step outside. Both of us try to open a window without letting our in-laws notice. The fresh air is such a relief. My mother-in-law consistently catches me plus shuts the window. She gets upset that I’m letting the heat escape. She says it forces the gas furnaces to toil harder. If she’s so upset with wear plus tear on the heating system, I would assume she’d lower the control equipment to a fair setting. It’s entirely odd that the two of us arrive in wool coats plus snow boots plus are forced to strip down because it’s so odoring warm at her house.
Dual fuel system