Bosch is a well known company which manufactures tankless water heaters. They have a few lines of products which are very successful. Bosch offers only high quality, at a fair price. The 2400E model is well appreciated when it comes to gas or propane powered tankless water heaters. The model is perfect for you and your family if you need hot water for two major appliances, like two showers.
The 2400E model can deliver 5.2 gallons of hot water at a 87% efficiency, which is very good. Combustion air can be pulled for this model from outside or from inside. The venting can be done in almost any way, vertically, horizontally and it can be outside a wall or up on the roof. Bosch did a really good job with this model, it is almost as easy to install as an electric tankless water heater. Each detail that made gas tankless water heaters more complicated has been simplified by Bosch.
To offer a better view of the quality of this model, I’m going to offer you more detail. The minimum flow rate of the 2400E is at 0.8 gallons per minute. The ignition is electronic. The highest temperature rise that this model can achieve is 90 degrees Fahrenheit, at a flow rate of 3.2 gallons per minute. At 3.7 gallons per minute it can achieve a 77 degrees Fahrenheit rise. With a flow rate of 4.5 gallons per minute the temperature rise is 65 degrees of Fahrenheit. The temperature rise at 5.2 gallons per minute is 55 degrees of Fahrenheit. The lowest temperature rise is achieved at a flow rate of 6.4 gallons per minute and is 45 degrees Fahrenheit. The weight of the 2400E is about 47 lbs. An optional part which you can get for this model is a wireless remote for the heater. It is also designed to last longer than 20 years.
The warranty for this product is also impressive. You get a 12 year warranty for the heat exchanger only if it was installed in a single family dwelling. In any other conditions you will only receive a two years warranty for it. For all the other parts you get a 2 year warranty.
So, if you want to have a high quality tankless water heater, with a high efficiency rate and with a high flow rate that can be used for 2 major appliances, the best choice for you is the 2400E model or the 2400EO model, which is very similar to the 2400E model.