Navien Lcb700 21Kw Oil System Boiler External Lsx Erp A+ Package 30025018A

Navien

The Navien LCB700 21k W Oil System Boiler External LSX ERP A+ Package (Supplier P/N 30025018A) is a compact, high-efficiency oil-fired system boiler offering 21 kW nominal heat output with up to 23 kW CH condensing output and an improved Er P A+ rating (93% to 98%) when supplied with the Er P A+ Package. Designed for external installation, it supports zoned heating control for up to three zones via the Smart Plus controller included in the package, and carries a 10-year guarantee. Key technical highlights include low NOx class 5 emissions, a 49 dB noise level, compatibility with 100 mm vertical or horizontal flues, and an overall height of 680 mm. This unit is suitable for small to medium domestic properties requiring reliable, energy-efficient oil central heating and multi-zone control.