Product fit and comparison
Honeywell MN1CFS8 vs MN4CFS0: rating confidence, weight and setup
The MN1CFS8 and MN4CFS0 are older Honeywell Classic portable air conditioners with black-and-silver/black styling, a single exhaust hose and Cool, Dehumidifier and Fan operation. Both exact product pages mark the models discontinued and sold out. They are useful to distinguish when identifying an existing unit or a particular older offer, but neither page is evidence of current availability.
The decisive difference is rating confidence and handling weight
The MN1CFS8 product page is internally inconsistent: one product-feature passage says 8,000 BTU/h ASHRAE and 5,000 SACC, while the table later says 11,000 ASHRAE and 8,100 SACC. Its hard-match capacity stays unknown until the label for a specific cabinet settles the issue. The MN4CFS0 page repeatedly gives 14,000 ASHRAE and 10,000 SACC, so its published DOE-tier is clearer. This is a documentation distinction, not independent cooling testing or a promise that either product will cool a particular room.
The MN1CFS8’s listed 63.9-pound weight is easier to accommodate than the MN4CFS0’s 74.9 pounds, although both are bulky to carry on stairs. The cabinets share a listed 18.1-by-15.2-by-29.4-inch size. Their exact pages advertise room-size estimates of 500 and 700 square feet respectively; these claims are not guaranteed heat-load sizing. The MN4 page gives a 58-dBA figure and MN1 gives 52 dBA, both manufacturer claims rather than independent measurements.
Shared setup does not mean interchangeable ratings
Each is a one-hose cooling-only configuration; the CFS code should not be mistaken for its related HFS heat-pump version. The MN1 family manual specifies a 5.91-inch hose and the MN4 family manual specifies a 5-inch hose; both extend 12–47 inches, both warn against extensions or sharp bends, and both call for 31.5 inches behind the unit plus 20 inches around the other specified sides. Their manuals list window-panel component lengths, while their product pages publish different window ranges. Neither source pair establishes a dependable installed clear-opening interval, so measure the sash and verify the kit in hand rather than treating a numeric result as certain.
Both manuals describe automatic evaporation as the normal cooling route but warn that accumulated water may still require draining. Continuous gravity drainage is for Dehumidifier mode; it requires a separate hose, and continuous drainage during active cooling is not recommended. The MN4 product page conflicts on 50 versus 53 pints/day of moisture removal, while the MN1 page says 50 without resolving its capacity-rating conflict. Do not choose either for a required moisture-removal number from those statements alone. Clean the washable filters every two weeks and keep the intake and outlet clear.
Decision
Favor the MN4CFS0 only when the clearer 10,000-SACC page rating matters more than its added 11 pounds and a specific older offer or existing unit is in view. The MN1CFS8 is lighter, but its capacity figures do not support a strict rating threshold. For a current purchase, heat, dual-hose airflow or a verified panel span, compare with current reviewed models instead of substituting the HFS suffix or inferring missing data.