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Invertor

We are looking at buying either a new or second hand boat and wondered if anyone can first give an idea of what is a good invertor, type rating etc, to consider, and obviously the ones to avoid.We do not need the kettle to give out whilst the bloomin fridge clicks on!!!!

Asked by: Akidma  | 4.20pm, Saturday 8 August


WW says:

There are two basic types of inverter and these come in various sizes from 300W to 3,000W and above so the choice is quite wide. Which type you need depends on how you plan to use it.
If it is simply to enable you to watch TV, run the fridge and use a hairdryer or vacuum cleaner from time to time, a modified sine wave inverter of about 1,800W should do the job. It you plan to install a modern washing machine or any other piece of equipment with thyristor controls, you need a sine wave inverter of around 3,000Watts. It is difficult to recommend makes but, in general - although not always - you get what you pay for.
One important thing to remember about inverters of all types is that they only convert power that is already in the batteries from 12-volts to 230-volts - they cannot create it. For this reason, you may need to run the engine while using large appliances like washing machines or tumble driers to keep the batteries topped up. This is best done while you are cruising. You also need to ensure that the charging system on the engine is capable of putting enough power into the batteries in the first place.
Unless you are planning to have a gasless boat, it is probably better to boil water in a kettle on the gas hob and conserve your battery power. If, however, you are planning to go gasless, you might consider an onboard generator as this will avoid the need to run the engine for long periods. Doing this, risks glazing the bores which leads to a smoky exhaust.

Graham Booth  | 8.57PM, Saturday 8 August


Readers say:

Graham what kind of onboard generator would be suitable?

Angela  | 5.56PM, Saturday 29 August

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