Features of Duct Fresh Air System:
Generally used for whole house ventilation, the air volume needs to be large, and the price of the fresh air fan is generally over ten thousand yuan. However, in addition to the fresh air fan, there is also an important cost of installation, as it requires the layout of pipes. The cost of pipes is related to the material, and the installation cost depends on the local market price. Therefore, when installing a ducted fresh air system, except for the price of the fresh air fan, which is transparent, other installation costs are generally opaque.
Advantages:
1. Whole house air supply, better air supply effect;
2. There are inlet and outlet ducts with bidirectional flow design, which can achieve heat exchange and avoid indoor energy loss.
Disadvantages:
1. Installation needs to be designed in the early stages of building construction, from the design to the drilling of pipes, with high design requirements;
2. Poor design can lead to a series of negative impacts such as structural safety risks, poor sound insulation, and aesthetic effects;
3. The pipelines are all buried, and the cost of later cleaning is high due to difficulty in maintenance;
4. The total cost is relatively high.
Features of Ductless Fresh Air System:
Because there is no need for pipeline laying, the cost of consumables is low, and decoration is convenient. Only a hole needs to be drilled in the wall or window, which can be installed before and after decoration. The specific cost includes the purchase of fresh air fans and the cost of drilling holes.
Advantages:
1. Small size, no space occupation, no need for pipeline laying, easy installation and maintenance, low cost of consumables, convenient decoration;
2. It can be installed before or after renovation, and the fresh air volume can be customized according to different houses;
3. The styling design conforms to the aesthetic of modern home products;
4. Each room is independently controlled, with high flexibility, saving electricity costs.
Disadvantages:
1. Unable to achieve two-way flow full house ventilation;
2. Most of them are unidirectional flows, and the heat entering the air cannot be effectively recovered.
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