If you’ve gone winter camping at least once, you’re aware that being inside a tent is much better than being outside a tent. If you’re unsure, just go out into the cold after being inside the tent for a while. The immediate blast of cold you feel is enough testament to the efficiency of a tent in the cold. This is why you must get one of the best hot tents in 2023. However, it is not advisable to rely only on a tent for warmth. Before you go camping in winter or generally cold weather, you need to be aware of the difference in temperature outside and inside the tent. You also need to be familiar with the temperature differences between 3-season tents and 4-season tents. You need to be armed with the knowledge of single vs double-layer tents and the effect of tent size on the amount of warmth you feel, and techniques to create more warmth inside the tent.
Do Tents Keep You Warm?
As a frequent camper, it’s more than likely that you know how to layer your clothes in cold weather. If not, there are three layering systems:
- Base layer: This is to keep your body dry by removing sweat.
- Mid layer: This is usually a fluffy layer that serves as a source of insulation to trap heat for your body.
- Shell layer: This is the protective layer.
You also need to apply this system when going to sleep. Your PJs serve as the base layer. The mid layer comprises the sleeping bag and pad, while the winter camping tent serves as the protective shell layer. Just like the shell layer, the purpose of the tent isn’t primarily to get warmth. Rather, it has a more indirect purpose by preventing wind from reaching you directly. This ensures that the warmth created by the mid-layer isn’t lost to the elements. It also ensures that you stay dry.
Does Body Heat Contribute to Tent Warmth?
When your body is in a resting position, it typically generates about 80-120 watts every hour. The heat is trapped inside if you are in a properly insulated tent. This way, the air within the tent stays warm and becomes an extra protective layer. Temperatures within the tent are thereby increased by 5-15F without you needing to create extra heating.
Note that:
- Candles produce about 40 watts of energy.
- A sleeping bag will prevent your tent from getting much warmer. An efficient sleeping bag traps heat inside itself, so your body heat never gets to the tent environment.
Tents Trap Moisture Alongside Heat
Once your tent traps heat, it also traps moisture in the form of vapor within. People generally expel up to 15 ml of water every hour while asleep. As the hot vapor comes in contact with the cold material of the tent, condensation starts to form. At first, the condensation doesn’t seem to be a lot. However, the vapor gathers and turns into a bit of a problem. In very cold weather, the condensation could begin falling like rain. This could increase your chances of getting wet, leading to more heat loss than you originally bargained for. A situation like this increases the likelihood of hypothermia.
3-Season Tents Vs Outside Temperatures
3-season tents often come with a lot of ventilation in mind. They are not likely to trap enough warmth in the tent because their main goal is ventilation. However, some people say their tents get 5 degrees warmer than the temperature outside. Some others say it gets up to 10F warmer. Others still say there is no observable difference between their outside and inner tent temperatures.
Are 4-Season Tents Warmer?
Compared to 3-season tents, most 4-season tents are created to keep heat within the tent. They were created using thick material that prevents heat from leaving the tent. The vents and openings can be closed to stop the wind from taking the heat out of the tent. When you use a 4-season tent, you can expect the temperatures to get 5-10 F within the tent compared to the temperature outside. A lot of expedition tents are a lot warmer than the temperatures outside.
Double-Wall Vs Single-Wall Tents
Generally, single layer tents are a lot warmer than their double-layer counterparts. This is because a single-layer tent has fewer places for the wind to come in. The other side of this is that they are more likely to keep moisture in, leading to more condensation issues in colder weather. You should only use single-layer tents in cold weather if the tent has great ventilation. Due to condensation issues, double-layer tents are better for cold weather or winter camping. The double-wall tent has a mesh layer, ensuring moisture can leave the tent. Some also have flies that extend to the ground. This ensures that the air stays trapped between both layers. This air is an insulator layer that keeps your tent warm.
Smaller Tents
Smaller tents are considered warmer than larger ones because they have less space within them. However, this only works if your tent is able to keep your body heat trapped inside. Many tents cannot properly trap body heat, so there is no point in buying smaller tents just because you think it will be warm. The material of the tent needs to be considered. If your main goal is warmth and you are camping with a group of people, it is much wiser to go with a larger tent. Using a heater with a larger winter camping tent is safer than a small one that will appear cramped. It is much easier to avoid the tent sides if you are in a larger tent. This reduces your chances of touching condensation often.
There are some exceptions for camping in the snow, where it is much easier to set up smaller than bigger tents. Here are a few tips to keep your tent warm:
- Keep the sides sealed with debris or snow
- Cover the insides of the tent
- Keep wind out
- Use a heater
