201 Stainless Steel = High Quality typically specification with a 2 year manufactures no tarnish warranty.
304 Stainless Steel = Very High Quality specification with a 5 year manufactures no tarnish warranty.
Note: Both types will far exceeded the no tarnish warranty times.
Your heating and ventilation choice should be based on Budget, Design, Construction Type and Lifestyle. Most 'modern' homes have a tight insulation envelope, including double glazing and open plan living accommodating the use of solar gain. Therefore we don't need as much heating as we once did, but we do need to consider Heat Recovery Ventilation to remove Polluted air and maintain a healthy environment which is essential. The Heating Company believes in mixing and matching product types, opposed to a whole home heating solution, to achieve the correct Ambiance within an affordable budget. Utilizing automated independent zone operation, as required per zone, with the ability to adjust to our erratic weather conditions, therefore providing affordable operation and comfort. Maximum energy efficiency is gained by incorporating individual zoned heating, utilising a product mix and match approach in tandem with HRV, opposed to a whole home heating systems in most circumstances. The Living areas, bedrooms and utility room heating needs to be automated for set time frames, comfort and efficiency.