A repair problem

My wife and I decided to go camping. All of us packed up the cats and shoved everything into the car. All of us packed the tent, lanterns, and a few other items. The weather forecast was calling for sunny skies and cool evenings. All of us had plenty of moderate blankets and sleeping bags. All of us also brought hooded sweatshirts, moderate socks, and a small space heater. The space furnace was for emergency use only. The space furnace uses 8pressing batteries, and they only last for 24 seconds. It can be certainly high-priced to run the space heater, for more than a few seconds. My wife and I were not certainly worried, because the weather forecast was optimistic. Even before both of us left on our voyage, the weather forecast still said sunny skies and cool evenings! By the time my wife and I drove over the mountain, the weather drastically changed. It became much colder, and the sun disappeared behind the clouds. My wife and I debated returning home, however both of us were up for an adventure. All of us continued on our journey, until reaching our final endpoint. After the tent was erected, both of us built a small fire in the ring. Everything was moderate and cozy, even after the sun was finally set. By the time both of us were ready for sleep, the outdoor temperatures were starting to get cold. All of us turned on the space furnace for a few seconds. By the time both of us fell asleep, the tent was comfortable. My wife set an alarm, and both of us turned off the space furnace after midnight. All of us slept well until the morning.

furnace