Millivolt vs. IPI: Find the Right Gas Fireplace Ignition

Introduction: Igniting the Fireplace Debate

Nothing brings comfort to a room quite like the flicker of a warm fire. Whether you're a seasoned fireplace lover or just diving into the world of gas fireplaces, understanding the differences between Millivolt and Intermittent Pilot Ignition (IPI) systems can help you choose the perfect setup for your home. Each system has its unique quirks, benefits, and quirks, so grab a warm drink, settle in, and let’s dive into the world of cozy, controlled fire!

Millivolt Ignition System: The Classic Reliable

The Millivolt system is the tried-and-true workhorse of gas fireplaces, known for its reliability and independence from external power. Think of it as your trusty, always-on friend who never leaves you in the cold—literally! Here’s what makes it tick:

Millivolt Valve

How It Works

Millivolt systems operate with a standing pilot light, which burns continuously, creating just enough voltage (measured in—you guessed it—millivolts!) to operate the gas valve. This steady little flame is what powers the whole show. When you flip the switch or hit the remote, the thermocouple senses the heat from the pilot light and allows the main burner to ignite. Simple, reliable, and always ready when you need it.

Power Requirements

The beauty of a Millivolt system is its self-sufficiency. Since it doesn’t need electricity, it’s a lifesaver if you live in an area with frequent power outages or if you simply want a dependable backup for heating. As long as you have gas, your Millivolt fireplace is ready to warm you up without a single electron in sight.

Efficiency and Cost

Millivolt fireplaces are efficient in their own right, but because of that constant pilot flame, they do burn a bit more gas than their IPI counterparts. Over a season, the cost of running the pilot light can add up, especially if you keep it running year-round. However, the trade-off is a fireplace that’s always ready to go at a moment’s notice, no power required.

Maintenance

One of the Millivolt system’s best features is its simplicity. With fewer electronic components, there’s less that can go wrong. But because the pilot light is always on, it’s wise to check for soot buildup and ensure the pilot assembly is clean. A little maintenance each season can go a long way toward keeping it running smoothly.

Pros and Cons

  • Pros:

    • Operates without electricity, so it’s great during power outages.

    • Simple, proven technology with fewer parts to worry about.

    • Compatible with basic wall switches or remotes.

  • Cons:

    • Consumes a bit more gas due to the constant pilot light.

    • Requires manual relighting if you turn the pilot off.

Intermittent Pilot Ignition (IPI): The Energy-Saving Modern

If Millivolt is our reliable standby, IPI is the energy-efficient innovator. IPI systems bring in some modern flair, saving gas by lighting only when needed. This is the choice for those who love efficiency and a bit of tech-savvy control.

Intermittent Pilot Ignition (IPI)

How It Works

The IPI system uses an electronic control module to ignite the pilot only when the fireplace is turned on. Instead of a constantly burning pilot light, IPI systems only light up the pilot and burners when you hit the switch or remote. It’s a great option for anyone looking to reduce gas consumption without sacrificing cozy evenings by the fire.

Power Requirements

IPI systems need external power to operate, whether from your home’s electrical system or battery backup. When the power’s on, it’s seamless, but in a power outage, the IPI system won’t operate unless you’ve got a backup battery. This is worth keeping in mind if you live in an area prone to blackouts.

Efficiency and Cost

IPI systems shine in energy efficiency. With no constant pilot flame, gas consumption is limited to only when the fireplace is in use. This means lower gas bills and a smaller environmental footprint, making it ideal for those who want a greener heating option.

Maintenance

While IPI systems are lower maintenance due to the lack of a constant pilot flame, the electronic components may need occasional checks. Over time, electronic parts can wear out, so a professional tune-up once in a while keeps things running smoothly.

Pros and Cons

  • Pros:

    • Highly efficient, with reduced gas usage.

    • Enhanced control with remote, thermostats, and programmable settings.

    • Safety features, including auto shutoff if the pilot fails.

  • Cons:

    • Dependent on electricity or battery backup.

    • Higher initial setup cost.

Feature Comparison: Side-by-Side Look

Feature Millivolt System IPI System
Power Source No external power needed Needs electricity or battery backup
Pilot Light Continuous burning Only ignites when needed
Efficiency Moderate efficiency, consumes gas steadily High efficiency, consumes gas only when needed
Reliability in Power Outages Reliable without power Needs battery backup
Control Options Basic, often manual Remote, programmable
Maintenance Simple, regular upkeep Occasional electronic checks

Which System Is Right for You?

If you’re still on the fence, here’s a quick guide:

  • Choose Millivolt if: You live in an area with frequent power outages, prefer lower upfront costs, or want a system that’s ready to go anytime.

  • Choose IPI if: You prioritize energy savings, prefer modern features like remote control, and don’t mind relying on electricity for operation.

One Example Of A Fireplace Manufacturer That Uses IPI

Environmental Impact: Which One Is Greener?

Millivolt Systems:
The constant pilot light in Millivolt fireplaces results in continuous gas consumption, which can lead to higher carbon emissions over time. While it’s a small flame, over a season, it adds up. This makes Millivolt a bit less eco-friendly, though it’s a minor difference for most homeowners.

IPI Systems:
With no standing pilot light, IPI systems use gas only when the fireplace is on, making them a more environmentally conscious choice. By minimizing gas use, they lower greenhouse gas emissions and help you save on fuel.

Safety Considerations

Gas fireplaces come with safety features designed to keep your home secure. Let’s look at each system’s safety benefits:

Millivolt Systems:

  • Equipped with a thermocouple that automatically cuts gas flow if the pilot goes out.

  • Flame presence sensors are included in many models to ensure that the pilot light is burning.

IPI Systems:

  • Uses an electronic igniter that minimizes gas exposure by only igniting the pilot when needed.

  • Includes an automatic shutoff if there’s an ignition problem or if the pilot goes out, adding an extra layer of safety.

Frequently Asked Questions

1. What happens if the power goes out with an IPI system?
IPI systems need power for operation, so during an outage, they won’t work unless you have a battery backup. This ensures you’re not left in the cold, even when the lights go out.

2. Which system is cheaper to run?
While Millivolt systems tend to have a lower initial cost, IPI systems save you money over time due to lower gas consumption. It’s a balance between upfront investment and long-term savings.

3. Can I upgrade from a Millivolt to an IPI system?
Yes, but it’s not a simple swap. Converting from Millivolt to IPI may require an overhaul of your control system and possibly your burner. Consult a professional to evaluate the costs and compatibility.

4. What’s involved in maintenance for each system?
Millivolt systems need regular cleaning due to the constant pilot light. IPI systems, with fewer components exposed to continuous combustion, typically need only occasional electronic checks.

Making the Right Choice for Your Fireplace

Which One Will Work Best For You.

Deciding between Millivolt and IPI boils down to what matters most to you. Millivolt’s steady, power-independent flame is perfect if you want reliability during power outages and simplicity. IPI systems, however, shine for energy efficiency, modern controls, and lower gas bills over time.

Whether you’re drawn to the dependability of Millivolt or the energy savings of IPI, both options bring warmth, comfort, and a beautiful glow to your space. With this knowledge, you’re ready to make an informed choice for a fireplace that suits both your lifestyle and your heating needs.

Next
Next

Get Your Gas Fireplace Winter-Ready Like a Pro