The integration of indoor and outdoor spaces in the home means that outdoor kitchens are becoming increasingly popular, an expert has said.Elizabeth Falconer, owner of renovation firm Position by Design in the US, wrote for the Star-Telegram that as the price of renovations under the roof goes up, homeowners will expand their living areas outside.Ms Falconer also noted that the market for high-performance, industrial-grade appliances is waning because they are overpowering space.Its more practical to put in two residential-grade stove/oven combinations. They give you the double cook tops, which are the benefit of an industrial-size cooking surface, plus the two ovens, and they actually cost less, she said.In addition, Ms Falconer noted that many homeowners are now choosing to expand their kitchen functions into other rooms by having morning kitchens with coffee makers in their master bedroom or a separate wine grotto with its own sink and refrigerator.Writing for yourhome.ca, Colin McAllister and Justin Ryan - hosts of Canadian TV show Colin Justins Home Heist recently said that homeowners should think about energy consumption and noise emissions when selecting new electrical appliances.