Heat Transfer

Hi Guest,

What about putting up a stainless round tubing (12mm dia.) along the stainless grills, on top and bottom, your heater grills will then becomes look flushed against this two stainless round tubing and could avoid any luggage or alarmed the guest in hitting directly to the heater. this is my only simple idea.

However, I can't figure out how did the system installed in the first place without considering the safety on the operation side?

Kind regards

Roman

A picture (or two!) is worth a thousand (or two!) words.

If you don't need all of the heat, feed the heater at 110V instead of 220V. You will get about 1/4 of the power and the temperature will be reduced even if it stays on all the time.

Why not locate a set of fabricated metal guards around the whole arrangement so as to enclose the heater and it's current guards.

Another thought might be to use some sort of ceramic guards on the heater. Even if they get to high temperatures, they will not transfer the heat as rapidly (lower thermal conductance) as metal guards thereby allowing someone who bumps into them from getting as badly burned.

If the metal grills are heating up to 165 degrees F then the air temperature for a couple of centimeters directly above the vents will also be excessive so you will just be moving the problem. I'm assuming the heaters are in a box/duct with exit grills and these will obviously need air inlets - are these large enough and directly beneth the heater elements to give a good flow of air and reduce the exit temperature?

Skin burns and damaged bags are just part of the risk, there is also a possibility of heat damage to the box/duct in which the electric heaters are situated including the wiring. In a short time you will have a build up of combustible dust and debris around the grill and on top of the heaters - hotel vermin also have a habit of building nests in ducts during the 'off' seasons - just what you don't need around electric heaters.

If you introduce a fan to blow cool air into the duct it will improve the effectiveness of the heaters and make the whole set-up a lot safer. At least add a couple of good thermostats inside the box/duct to control the heater(s) and avoid serious over-temperature at the vents. You should also get an electrician to inspect the heaters before they are switched on each year to ensure they are still safe to operate.