This is a link to a seller’s website. It’s information on the Beacon-Morris K84 , a forced hot-water heater used in minimum-space applications (e.g. under a cabinet, in recessed floor spaces) and destined for use in our kitchen. We’re using Schumacher & Seiler, a local Baltimore plumbing supply house, as our vendor (luckily, they have a warehouse not 5 miles from our house.)

Update: This will not work with our heating system, which is steam radiator based. From what we are told, it’s only compatible with gravity/hot water systems.