The RSF Opel Plus series is built for homeowners who want a wood fireplace with a more classic personality, but without giving up modern efficiency and serious heating performance. This is the same core fireplace platform offered in multiple visual configurations — which is exactly what makes the lineup easier to understand once you strip away the naming clutter. The Opel 2 Plus and Opel 3 Plus are fundamentally the same high-efficiency catalytic unit, with the real difference being the door configuration and front presentation, while the Opel Plus Keystone uses that same proven platform and adds a more design-driven keystone-facing option.

What makes the Opel Plus family stand out is the blend of old-school fireplace warmth and modern catalytic performance. RSF describes the series as taking the Opel family “to the next level,” with current published emissions of 0.7 g/h, which puts it among the cleaner-burning fireplaces in this category. The published heating story is equally strong, with current materials citing heating capacity up to 3,000 sq. ft., making this lineup a serious option for buyers who want more than ambience.

Another big strength is the flexibility in finished appearance. The 2 Plus and 3 Plus give you two ways to present the same core unit, while the Keystone version adds a more decorative and versatile aesthetic. RSF says the Keystone name comes from the interchangeable keystone facing, which can be finished as either a semi-clean look or a full faceplate, giving homeowners more control over whether the fireplace feels more traditional, more transitional, or a little more tailored to the room.

For customers who want a high-efficiency wood fireplace with a more classic look, real heating muscle, and a choice of front styles built on the same proven platform, the Opel Plus family lands in a very strong spot. It keeps the timeless fireplace feel many homeowners still want, while the 2 Plus, 3 Plus, and Keystone options make it easier to match that performance to the final look of the room.

• Series: RSF Opel Plus catalytic wood fireplace family.
  Available Models: Opel 2 Plus, Opel 3 Plus, Opel Plus Keystone.
  Core Platform: Opel 2 Plus and Opel 3 Plus use the same fireplace platform; primary difference is door setup/front presentation.
  Firebox Size: 3.6 cu. ft.
  Maximum Log Length: 18″.
  BTU Output: Up to 70,000 BTU/h.
  Glass Viewing Size: Approx. 308 sq. in. for Opel Plus core unit; Keystone listings show 325 sq. in.
  Particulate Emissions: 0.7 g/h.
  Heating Capacity: Up to 3,000 sq. ft.
  Chimney Requirement: 7″ EXCEL chimney.
  Keystone Aesthetic Option: Interchangeable keystone facing available as semi-clean or full faceplate.