Default blog
Running Caravan Air Conditioners: Generator Sizing & Setup
For running a caravan air conditioner, an inverter generator is the recommended choice. Unlike conventional generators, inverters provide "clean" power (a pure sine wave) that is safe for sensitive electronic components found in modern air conditioning units and other appliances. When selecting a generator, prioritize the following: Sizing (Wattage): Air conditioners have high "starting" (surge) watts when the compressor kicks in, which is often 3–6 times their running wattage. A generator in the 2.0kW to 4.5kW range is typically required to handle this surge comfortably. Always check your specific AC unit’s label for its starting and running requirements. Noise Levels: Since you will be using this at campsites, look for low-noise ratings. Modern inverter generators are designed to be significantly quieter than traditional open-frame models. Portability & Features: Features like wheels, handles, and remote or electric start can make daily use much easier. When selecting a generator for your caravan air conditioner, performance can be affected by more than just raw wattage. Here are the critical environmental and operational factors to keep in mind to ensure you have enough power when you need it most. Environmental Performance (De-rating) Generators produce less power in high heat, humidity, or at high altitudes. Heat Impact: As ambient temperatures rise, engine performance decreases. A good rule of thumb is to allow for a 1.5% decrease in output for every 5°C above 25°C. For example, on a 45°C day, your generator may output 6% less power than its rated capacity. Altitude: Operating at high elevations will further de-rate your generator’s output, meaning you should account for these drops when sizing your unit. Extension Lead Length In extreme heat, the length of your power cable matters. It is recommended to use a short lead (3–4 meters maximum) from the generator to your caravan. Using a longer cord can cause voltage drop, which may lead to issues starting your air conditioner's compressor. Factoring in Other Appliances Your generator needs to handle more than just the air conditioner. You must account for the total load of every device running simultaneously, such as: Battery chargers Refrigerators Lights and TVs If your generator is sized only for the air conditioner's surge, it will likely overload if you try to run your battery charger or other appliances at the same time. Recommendation Because of these variables, it is always a smart investment to opt for a generator with extra capacity beyond the peak draw of your air conditioner. This "headroom" ensures your system remains reliable, even on the hottest days or when you have multiple devices connected.
Read more
What can you power with a Honda EU22i Generator.?
The Honda EU22i portable inverter generator may be small but it’s packed with features and innovations that will provide you with clean, friendly power to run things like sensitive electronic equipment at home or small power tools on a job site. A combination of lightweight materials and design, and an ergonomic handle make this generator [...]
Read more