If you don t have a built-in microwave, you can counter this problem by mounting your stand-alone model on brackets found on the wall. Mounting either a built-in or a conventional oven on the wall must be done by a professional. Since microwaves are usually heavy, they should have strong support. Replacing a Built-in Microwave Oven If you re planning to replace your old built-in microwave but your budget isn t enough to pay for the services of the pro, you can do the installation by yourself. If we throw into the equation the 3000 wattage generated by conventional ovens as opposed to 600 watts to 1650 watts by microwave ovens, you can pretty much discern the discrepancy of energy saved when using the latter. Taking into account the efficiency of a microwave oven compared to a convection oven in terms of cooking food only makes the result more exponential. Apart from being convenient, it takes effort to imagine life without the microwave. How about if you are usually rushing in the morning or when you normally get home late at night? Of course you need something that is too convenient to use. And so having been regarded as a trusted cooking device, you should likewise know how it is to maintain its good condition. Roasting chicken, browning sandwiches, baking rolls and pastries, cooking pasta and pizzas, steaming fish, this microwave is very functional. You will never need another appliance when as far as cooking or preparing foods is concerned. It is also very user friendly, albeit you need to handle it with care, as what you would with other kitchen appliances. It's like having two cooking appliances in the price of one. The difference lies in the way both of the ovens are built. Convection microwaves have built-in fans at their backs, which unfortunately, conventional ones lack of. The fan circulates the heat inside the oven, resulting to an even distribution of heat to the food. After doing so, check the cord for dirt and damage because a damaged cord is dangerous. If the cord is still in good condition, wipe it down to eliminate dirt and dust. 2. Inspect your dirty microwave. Examine your microwave oven to know how dirty the unit is and to find out which of its interior components can be taken out.