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Posted: Wed Jun 22, 2011 7:49am

Post Subject: Microwave Ovens

Hello, Can a microwave oven be suitable for a narrowboat? If so what type please?


Posted: Wed Jun 22, 2011 8:26am

Post Subject: Microwave Ovens

It can be - providing you carry out the power/energy audit and then the charging calculations that you will find on the TB-Training website. Before you do that you need to decide if you will use a mains version which will require a (probably) pure sine wave inverter or a 12/24DC volt one. If you have a modern fairly high spec boat then the electrics might be able to cope, if you have an older boat your calculations should give you an idea about the need to up-rate the charging system and regime and possibly the battery bank. The exact power requirements for a microwave will be found on a plate AT THE BACK of the appliance but as a rough guide double the wattage shown on the front (the cooking power. If you can find a microwave with a genuine clockwork timer it might (or might not) work with a modified sine wave inverter. If you have an on-board generator, are always connected to a shoreline when the microwave is in use or if the engine is equipped with a TravelPower then there will be no questions about your ability to run a microwave on board. If you are relying upon alternator charging then there is a question that you need to answer for yourself by working through those calculations for you boat and your use of it. A general rule to give guidance is that using electricity to produce any form of heat from battery power tends to be a not very good idea but careful usage patterns (like only running the microwave when the engine is running and revving)can make it possible. Tony Brooks

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