Since no venting is required, the 33" Solstice Traditional Vent-Free Fireplace Insert with Millivolt Control by Monessen makes for a fast, easy, and affordable installation. Available in either propane or natural gas, this fireplace boasts a BTU output of 28,000 and features a standard blower that powers up the heat output, even operating without power for dependable warmth during outages.

How The Monessen Solstice VFI33 Millivolt Compares To The IPI Version

Homeowners upgrading an old wood-burning fireplace usually face this question: should I get this millivolt control version for a lower upfront price, or the IPI ignition version for fuel-saving convenience?

Here's the honest comparison:

Feature Monessen Solstice VFI33, Millivolt Control ($1,999) Monessen Solstice VFI33, IPI Ignition ($2,049)
Ignition System Standing pilot with millivolt control Fuel-saving IPI (EcoLogic) intermittent pilot control
Power Requirement Self-powered, does NOT require 110V AC to operate Requires standard power to operate the electronic control system
Power-Outage Operation Fully operational without power; standing pilot generates its own electric charge for safe shutdown Operates without power for heat, though ignition electronics are 110V-based
Ongoing Fuel Use Standing pilot burns continuously, using more fuel over time Pilot ignites only when needed, reducing fuel consumption over time
Control Options Wall switch or remote control in conjunction with a standing pilot Wall switch or remote, powered by IPI control system
BTU Output 25,001 to 30,000 28,000
Blower Standard blower 135 CFM blower
Viewing Area 28" x 18" 28" x 18"
Customization Choice of logs and interior panels Choice of fiber ceramic or refractory logs, choice of interior panels
Best Suited For Homeowners wanting the simplest, most power-independent operation at a lower price Homeowners prioritizing long-term fuel savings over standing pilot simplicity

Why The Monessen Solstice VFI33 Millivolt Is Worth The Investment

This isn't just a fireplace insert, it's built with a self-powered millivolt control valve that doesn't require 110V AC to operate, giving homeowners a genuinely power-independent heat source that generates its own electric charge for safe shutdown during a gas interruption or flame-out.

The VFI33LNV specifically addresses the needs of homeowners converting an old, drafty wood-burning fireplace into a dependable heat source who want the simplest, most self-sufficient ignition system available, all at a lower price point than the IPI version.

True Power Independence, Built Into The Valve Itself. Unlike ignition systems that rely on 110V AC power, the millivolt control valve is a self-powered combination gas control that generates its own small electric charge, meaning this fireplace remains fully operational for both heat and safe shutdown control even during an extended power outage.

Built For Efficient, Reliable Heat

The Natural Blaze Burner System delivers realistic, dancing yellow flames and a glowing ember bed for genuine fireplace ambiance

A standard blower powers up heat output, pushing warmth further into the room

Wall switch or remote control convenience works in conjunction with the standing pilot for safe, simple operation

Engineered For Easy Installation And Customization

No venting requirement makes for a fast, easy, and affordable installation compared to direct-vent alternatives

Choice of logs and interior panels lets you customize the look to match your decor

CSA design certified and mobile home approved for broad installation flexibility

Real Savings

A lower upfront price than the IPI version reduces initial cost for budget-conscious buyers

No venting installation avoids the cost of chimney or vent pipe work required by direct-vent inserts

True power independence reduces the need for backup heating equipment during extended outages

Free shipping and no sales tax through Summit Forge Supply keeps the total cost down compared to buying elsewhere and paying tax and freight separately

The Bottom Line Homeowners converting an old wood-burning fireplace who want the simplest, most power-independent ignition system at a lower price can't get that combination from the IPI version. The Monessen Solstice VFI33 with Millivolt Control is built with a self-powered gas control valve, a dependable standing pilot, and a vent-free design, so it delivers an efficient, easy-to-install heat source that stays fully operational no matter what the power grid is doing. For anyone upgrading a drafty old fireplace who wants maximum simplicity and power independence, this is the insert built to get it done.

Monessen Solstice VFI33 Vent Free Traditional Insert with Millivolt Control - NG

Features:

  • Natural Blaze Burner System (18")
  • Choice of Fiber Ceramic or Refractory Logs
  • Choice of Interior Panels
  • 135 CFM Blower
  • Screen
  • 18" Flex Line with On/Off Shut-Off Valve
  • Easy Access Control Panel
  • CSA Design Certified
  • Viewing Area:  28" x 18"
  • Minimum Firebox Opening Dimensions:  33" FW x 23 7/8" H x 15 1/4" D x 22 3/4" RW
  • Millivolt Control
  • 28,000 BTUs

Required to Complete:  Log Set, Interior Liner and Surround (Sold Separately)

Fuel Type Natural Gas
Face Style Clean Face
Fireplace Style Traditional
Control Type Millivolt
Panel Color Optional
Panel Design Optional
Size 28"
Vent Type Vent Free

Customers also bought

    • FREE SHIPPING IN USA

      Enjoy free shipping

      with every order

      on our website!

    • SATISFACTION GAURANTEED

      If your order arrives defective or fails

      to function properly, you will receive a full

      100% refund!

    • PREMIUM CUSTOMER SUPPORT

      Connect with us through email

      or phone, and we will address

      any questions you may have!

    • SECURE ENCRYPTED PAYMENTS

      We utilize advanced encryption

      to ensure there is never

      an issue with your privacy.