Warranty is one of the three important criteria for choosing solar panels after efficiency and cost. Solar panels are not installed for a day or a month. These offer the most promising source of power in regions that receive a sufficient amount of sunlight. Thus, one should check the warranty period, which should be approximately 10 to 25 years.

The fireplace consists of incombustible "logs" covering gas vents, and the fire itself burns behind glass doors. The fire draws air outside air through a pipe to support combustion, so no warm room air is drawn out of the house. If you want to add a fireplace to an existing home, a gas fireplace makes sense.

Some people often assume that anything that is costly is always better. However, this is not always true. The industry is brimming with several types of solar panels that are quite costly but not primarily efficient. Hence, one should definitely choose an affordable alternative that is equally efficient in the long run.