Friday, April 11, 2008

Ceramic Glass Hob

There have been questions on whether glass hobs are fragile and heat resistant. Actually, if you were to go for quality glass hobs, there should not be any worries. Glass hobs however should be tempered and so if there is damage, even a tiny crack or splinter, heat will cause it to shatter so care must be taken not to damage the glass during transportation and installation.

However Glass hobs are increasingly getting popular due to their easy cleaning and aesthetically pleasing design in today's modern contemporary kitchens. We were attracted to Rinnai because their glass hobs feature 2 innovations

Ceran glass panel top :
Manufactured in cooperation with a leading German glass manufacturer - SCHOTT , the glass ceramics panels can withstand great levels of shock and pressure,allowing for durability for heavy cooking usage. You can go to the following site to witness this :
Seal of quality ceramics glass on Rinnai RB-2CG

Thickness of glass ceramics


Inner-Flame Burner :

Rinnai Corp., Nagoya, Japan, has turned burner design completely around with its inner-flame burner. Instead of shooting flames outward from the burner perimeter, as with a conventional burner, Rinnai’s inner-flame burner is ported so that flames shoot inward toward the center.


The purpose of the unusual design is to create a coherent, unified flame that rises under the center of a pan, then flows outward, bathing the entire bottom of the pan in flame. This approach heats the pan with greater uniformity and improves the efficiency of heat transfer from the flame to pan, which is good for even frying without getting burned food.
In addition to aiming the ports inward, two other design factors assist in shaping the flame. One is that the burner sits slightly below the surface of the cooktop, helping the individual flames to coalesce toward the center as they rise through a hole in the cooktop surface.

Secondly, and more importantly, the burner ports are angled slightly on the horizontal plane. The effect of the flames shooting out an angle is to create a fiery vortex. The swirling flame is meant to accomplish two things. One, it assists in driving the flame outward across the bottom of the pan, helping to evenly bathe the pan bottom with flame. Two, the vortex creates a pressure drop that assists in drawing air in for combustion allowing for a strong consistent flame.


There are 2 types for all Rinnai models as in other hobs, LPG gas or piped gas. Do specify which one you are using at time of purchase. Piped gas are more common in new and upgraded HDB estates. The hob is easy to use, with just some practice needed to turn on the flame, by holding on the switch till flame is fully shot out. The inner burner really is effective as cooking is quite immediate as you see the food or soup being heated up very fast. We got a good price of $1400 at that time(Nov 2007) for a package purchase of a Rinnai RB-2CG(LPG) hob and RH-988C Glass hood from Mega Discount Store at Katong Mall. We chose a 2 burner hob because a 3 burner hob would be a tight squeeze for practical cooking given the size of saucepan and pots and usually, it is practical and safe to handle 2 burners at any one time. For the RH-988C, we like the flat and squarish modern design which fits in the modern contemporary look. Air flow is more than adequate given that in real life, we do not cook at restaurant level of cooking. Importantly, there are built-in downlights to aid in cooking.
RB - 2 CG Cooker Hob
RH - 988 C Cooker Hood

Installation to your kitchen cabinet is done by your contractor while connection to gas inlet is by either the LPG supplier or the SP gas man.

1 comment:

Unknown said...

Hi, nice blog, nice inner burner, intersted to get one, but like to learn more. Would you be able to share experience on the Burner maintenence? like how you handle soup overflow massively... is it easy to clean? Conventional burner tends to choke up by carbon and fire turns reddish, over prolong usage, the burner cap tends to burnt out and wear out as well, does these happen to inner burner?