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).
The ITN is an Automated Export System (AES) generated number assigned to a shipment confirming that the EEI was accepted and is on file in the AES. This number should be placed on any loading document to allow the Customs and Border Protection (CBP) officer the ability to retrieve the shipment, if needed.