Each model is suggested and appropriate for specific conditions, and there is no "best" model. Customers should choose the models based on their needs, also keeping in mind the installation conditions.
There is no "best" model. Each BIG boiler has been designed to suit a specific need. Choosing the correct model depend on a variety of factors, include home size, building standards, local climate...
Manufactured in cooperation with Riello
CE certification of the boilers
The only available boiler with free installation kit
Support of the largest service network in Iran
Warranty backed by the largest spare parts distribution network in Iran
Highest efficiency and lowest operating cost of any available boiler
Largest range of models to choose from
The major difference is that in room-sealed boilers the combustion happens in a closed chamber and both the exhaust and air intake is done by the special dual chimney provided by BIG. Whereas in regular or open boilers the air required for combustion is provided from the installation area.
Heating and Sanitary Water: The boiler provides the hot water for the heating circuit continuously and as required. When sanitary water is required, hot water to the heating circuit is temporarily cut-off and sanitary hot water is provided by mean of a three-way valve and a secondary heat exchanger Only Sanitary Water: similar to the function of an instant water heater, the boiler only provides instant and continuous hot water as required, returning to a standby mode when the hot water tap(s) are closed.
Independence from other residential units
No additional cost associated with traditional central heating systems
Easy access to the boiler for temperature setting (usually in the kitchen)
High efficiency and reduction of operating costs
Lower maintenance costs
Each model is suggested and appropriate for specific conditions, and there is no "best" model. Customers should choose the models based on their needs, also keeping in mind the installation conditions.
The highest capacity models are the 18 Litres models available in standing pilot, ionized, and ionized forced flue. Note that the 18 litre models other than the forced flue version have specific chimney requirements and care should be taken during installation.
All BIG models are instant water heaters and as such the number of people in the household is not a consideration as is the case with storage water heaters.
In Standing Pilot water heaters the ignition system is a continuously lit pilot flame, whereas in Ionized models the Standing Pilot is replaced by a "smart" ignition system. Ionized systems provide on average a 17% saving on gas consumption and have the highest energy rating. Build-up is also reduced considerably in Ionized models
Installation of the water heater on the wall, the connections for gas, water, and the chimney are included. All piping must be prepared before hand at the place of installation at the cost of the customer.
Based on the Iranian standards and building guidelines as well as the model requirements the chimney size for various models are as follows:
For 8 and 10 Liter models, 10 cm chimney diameter
For other models with the exception of forced flue, 15 cm chimney diameter
Other factors may affect the reduction in chimney size requirements, however these can only be approved by a certified BIG servicemen and after an on-site consultation.
Yes. Ensure that at the time of purchase the LPG version is chosen, or by requesting an LPG conversion kit from your certified BIG servicemen (at customers cost).
All model have Energy Rating labels. Pilot models have an energy rating of D, and ionized models have an energy rating of C which are the highest energy rating of any water heater available in Iran.
After gold, silver and copper, aluminium is the most heat conductive element. Aluminium is also the second most widely available element in nature and as such is cost effective. Aluminium radiators are lighter, easier to install, and have the highest heating capacity compared to other radiators.
All BIG radiators are specially chemically treated, coated and then painted including the insides. This process provides a layer paint inside the radiators that reduces the contact of water with the aluminium which is the cause of corrosion.
BIG does not use standard harmful asbestos based gaskets such as many of the other manufacturers instead using silicon based gaskets. Also BIG uses the highest quality paint from BASF which is lead-free again, unlike many of our competitors.
You can buy BIG radiators from all reliable heating/cooling systems stores all over Iran. For more information please contact your state's customer contact center or our specific telephone line 021-51011 they will introduce the nearest BIG sales agent.
It is possible to use a normal radiator in the bathroom, but using a TR that is specially designed for the bathroom brings more benefits for users as follows:
Occupies less space in bathrooms.
Due to the installation at a higher height, it is more accessible for drying towels and clothes.
Generally, the bathroom space is humid, and because of the use of using the best raw materials and moisture-resistant dyeing in the production process of BIG TRs, they have the highest resistance against corrosion and rust.
Customers can buy BIG TRs from all reliable heating/cooling systems stores all over the Iran. For more information, please contact your state's customer contact center or our specific telephone line: 021-51011, Operators will introduce the nearest BIG sales agent.
