There really isn't except that a commercial model may have more failsafe features.
Depends on the size of the heater Commerical etc
Heater produsces - heat recovery finds heat and reuses it
The difference between a mobile gas water heater and a standard gas water heater is that a MH unit will use an outside air intake for combustion. That is the most important difference.
To get the best deal on purchasing a commerical immersion heater you could check your local yellow pages or go to www.ebay.com or www.amazon.com for better deals
It is the difference between the saturation temperature corresponding to the steam inlet pressure of feed water heater and it's outlet temperature.
http://en.wikipedia.org/wiki/Boiler Should be everything you need to know
"A holmes heater, generates its power source by being filled with oil; whereas, a regular furnace runs off of either a electricity or a gas power source."
Electricity energy is converted into internal energy through work. As the internal energy of the heater increases so, too, does its temperature. Energy is then lost to the surroundings through heat transfer. The change in the heater's internal energy is the difference between the work done on the heater and the heat transfer away from it.
Do you have issues with your 40-50 gallon tank water heater in a residential or commercial place, and do you need a plumbing company to install a tankless water heater? If so, don't hesitate to call Water Heater Spring, TX. We can send over professional plumbing contractors.
Radiant heaters heat objects nearby them such as furniture and are usually cheaper. Regular convection heaters actually heat the air temp in the room.
Cool touch heaters are made of ceramic and aree very safe, while mica radiators are hot to the touch but produce much more heat.
A combination boiler provide hot water to a central heating system whereas the multi-point water heater does not. The multi-point water heater provides hot water to multiple appliances or taps at the same time.