Integrated or what is often called combined Hot Water systems are often used in most households nowadays. These multipurpose appliance units are widely manufactured due to the continuous demand in the market or industry.
Primarily discussing for the purpose of residential use, which is mostly the main market for these types of units. There are two types of Hot Water systems in the market, these are tankless and storage tank. Just like any other stuff, it has pros and cons, thus, choosing should not be a toss coin, and you need to consider a few factors prior to buying or investing.
Combined or integrated Hot Water systems have distinct advantages over conventional heating systems. Given these combined or integrated Hot Water systems provide source to both space heating and domestic consumption, thus having less unit to maintain and would be more efficient given you will only need to run one unit. It is a given that any unit that generates heat would mean use of energy apart from emitting greenhouse gas that is obviously the thing that most want to eliminate to save or at the least to slow down the effect to the ozone layer.
Storage tank Hot Water systems are designed to have a separate tank for domestic consumption, isolated to avoid contamination of the water that will be for human consumption. This said type is safer for the reason that the tank of water used by human is separated from the heating system, thus mostly preferred by households. Another advantage is that this is more energy efficient given that it has lesser on and off cycle due to an added storage tank design. Lastly ,it covers both space heating and human consumption; would mean lower electricity, and you will only need to maintain one unit, thus, saves you money in the long run which is another advantage of this type of system.