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2026.10.21

Common fault diagnosis and troubleshooting for wall-mounted boilers!

[Introduction] Flue gas safety for wall‑mounted boilers: Wall‑mounted boilers use a concentric double pipe; the inner pipe exhausts flue gases, while the outer pipe supplies combustion air and is connected to a sealed chamber, remaining completely isolated from the indoor space. All brands of wall‑mounted boilers feature forced exhaust (with a fan) and balanced draft (with a pressure switch), so both flue gas discharge and air intake occur outdoors, without consuming indoor air, ensuring a high level of safety. In recent years, all reported explosions have been caused by leaks in natural gas hoses; there have been no incidents involving boilers exploding.

Common fault diagnosis and troubleshooting for wall-mounted boilers!
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