Gas heaters produce more heat when compared to electric heaters in the same amount of time. Since gas is generally cheaper than electricity, a gas heater has lower operating cost.Electric space heaters are cheaper only when a small space is to be heated at lower temperature settings.as heaters produce more heat when compared to electric heaters in the same amount of time. Since gas is generally cheaper than electricity, a gas heater has lower operating cost.
EPNS stands for Electro Plated Nickel Silver. Nickel Silver (sometimes stainless steel) is the base metal onto which silver is plated. Despite its name, nickel silver contains no silver at all, but is an alloy of nickel, zinc & copper.he most common is EPNS (Electro Plated Nickel Silver) but many other symbols are used: 1  EPBM (Electro Plated Britannia Metal). 2  EPCA (Electro Plated Copper Alloy). 3  ESM (Electro Plated Silver Mounts).
ips simply means iron pipe size piping is a general term used to describe any hollow cylindrical carrier of liquids many piping materials are used to produce both pipe and tubing piping and tubing made of the same materials generally use different kinds of fittings all piping made to the od outside diameter of wrought iron pipe is referred to as being iron pipe size or ips the od of most pipes is the controlling dimension in order to match with fittings