With a tankless gas water heater, there is no storage of large quantities of water coupled with the costs of keeping the water hot when compared to a traditional water heater. It is hot water on demand. With a tankless system, you only pay to heat the water you use which means with tankless technology you consume less gas than conventional hot water heaters. Also, imagine the space you will save with a wall hung tankless gas water heater! Langton ClimateCare carries a variety of tankless water heater product lines for your in-home use.