Choosing between these two Dayton hydronic unit heaters comes down to a $1,250 difference in listed price and how much published performance you need. The Dayton 5Pv27 is listed at $250; the Dayton 5Pv33 at $1,500. Both are DAYTON-brand horizontal hydronic wall/ceiling unit heaters listed as new condition. The 5Pv27 listing says it is new without the original box and has a dent in the fins that does not affect use. The 5Pv33 listing describes an open-box unit that has never been used or tested and includes an airflow spec of 2,200 CFM.
Quick verdict
If you want the lower listed price and can tolerate the fin dent and the shipping note, the 5Pv27 is the straightforward choice. If you need published heating output and airflow numbers, the 5Pv33 is the one that provides them.
Comparison
| Listed price | $250 | $1,500 |
| Height | 27-3/4" | 29" |
| Condition | New, no original box, dent in fins | New/other open box, never used or tested |
| Listing includes | Size, condition, shipping note | Airflow 2,200 CFM, BtuH outputs, fan diameter, connection size |
Where each wins
5Pv27 wins on listed price. At $250, it's $1,250 less than the 5Pv33. The fin dent and missing box are the trade-offs for that price point.
5Pv33 wins on published performance. This listing spells out 2,200 CFM airflow, 180,000 BtuH at 2 PSI steam, and 118,000 BtuH at 200°F water. It also stands 29" tall against the 5Pv27's 27-3/4".
Product notes
Dayton - 5Pv27 Hydronic Unit Heater 27-3/4" H limited shipping see description
This is the lower-priced option at $250. The title itself says to see the description for shipping limitations; the listing also notes that otherwise it's local pickup. The unit is new but without its original box, and the seller says there's a dent in the fins that does not affect use. For a shop or utility space where appearance is less important, this could be the more sensible buy. The trade-off is that the listing doesn't include an airflow or BtuH figure, so you're choosing based on price and dimensions rather than a published capacity number. If the dent and shipping constraints are acceptable, the $1,250 price gap compared to the 5Pv33 is a big factor.
Dayton 5Pv33 Hydronic Unit Heater, 2200 Cfm, 29" H
At $1,500, this unit costs $1,250 more than the 5Pv27, but the listing provides a fuller performance picture: 2,200 CFM, 180,000 BtuH at 2 PSI steam, 118,000 BtuH at 200°F water, an 18-inch fan, and a 29-inch height. The condition is described as new/other because it comes from an open box, and the seller states it has never been used or tested. If you need a hydronic heater with clearly stated capacity specs for a larger space, this listing gives you that detail up front. The catch is the higher listed price. You're paying more for the additional specifications and the taller unit, and the open-box condition means it's still a unit that hasn't been tested.
Final choice
Choose the 5Pv27 if you want the lowest listed price and can live with the fin dent, missing original box, and shipping limitations described in its listing. Choose the 5Pv33 if you need the published heating capacity and airflow specs and are comfortable paying $1,250 more.
