The TITAN’s Panel Has Ten Slots. Only Two Take 240 V.

Every battery I’ve wired into my house has gone through a transfer switch, and the switch teaches you something quickly. You don’t back up a house. You back up a short list of circuits.

The Smart Home Panel 10 makes that list ten slots long, with 50 A across all of them.^[3] So start there. Tap the circuits you’d want on in an outage and they land on the slots that fit them, the way they would on the real panel. The verdict underneath reads the same numbers as the rest of this page.

While you’re at it, go and look at your own breaker panel. If a breaker has a small TEST button, flag it in the planner. That matters more than it sounds, and I’ll get to why below.

Ten slots, and they aren’t ten of the same.

EcoFlow’s manual lists the breakers.^[6] The 240 V panel sold for the TITAN and the Plus has one 30 A and one 20 A two-pole, two 20 A and four 15 A single-pole. A two-pole breaker fills two positions, so the panel holds at most two circuits at 240 V and six at 120 V. The Classic’s 120 V panel has one 30 A, one 20 A and eight 15 A single-pole: ten circuits, none of them 240 V.

The manual also says each breaker in your main panel has to match its partner in the Smart Home Panel 10. So a circuit can only land on a slot its wiring can carry. A 3-ton central air or heat pump usually sits on a 30 A breaker and takes the big slot. A well pump on 20 A takes the other. That’s both. Central air plus a heat pump, or central air plus an electric water heater, only works if one of them runs on 20 A.

Anything on a 40 or 50 A breaker is out: an electric or induction range, and most Level 2 EV chargers. That answers the owner who wanted a heat pump and an induction cooktop on it.^[12] The heat pump fits. A range on a 40 A circuit doesn’t. The 120 V side is tight too: the 240 V panel takes six circuits, and only two of them at 20 A. Kitchen and laundry circuits are often 20 A, so they compete for those two.

No. EcoFlow’s manual says so in capital letters.

First, what these are. An AFCI breaker watches for the sparking of a damaged wire. A GFCI breaker watches for current leaking somewhere it shouldn’t, like through a person. Plenty now do both. You can spot them by the TEST button on the front. The 1999 electrical code started with bedrooms, the 2008 code spread AFCI to most living spaces, and kitchens, laundry rooms, garages and basements picked up GFCI rules along the way. In a house wired in the last fifteen years, a good part of the panel looks like that.

The product pages don’t mention it. The panel’s user manual, posted on October 20, does. Its safety rules say: “DO NOT connect the panel to main panel circuits protected by GFCI or AFCI breakers.”^[6] The breakers that feed the TITAN from your main panel have to be plain ones too, and the TITAN’s own manual says the same of that feed: a double-pole breaker of 20, 30 or 50 A, not GFCI or AFCI.^[4] The owner on EcoFlow’s subreddit who read the label on the back had it right.^[12]

One more line from the same safety page matters for a bedroom circuit. The manual says not to put life-support or other medical equipment on a circuit the panel can switch remotely.^[6] A CPAP on a backed-up bedroom circuit is exactly that. It belongs on an outlet the TITAN feeds directly, or on a battery of its own.

EcoFlow’s first home panel had the same rule but sold a box to put those breakers in downstream. This one offers nothing like it. Its newer, bigger panel went the other way.

It’s the rule I’d expect. The Smart Home Panel 10 ships pre-wired, like the Reliance transfer switch on my wall. A panel like that takes a circuit off its breaker in the main panel and feeds it through its own. An AFCI or GFCI breaker can only protect what flows through it. Once the battery is feeding the circuit, nothing is flowing through the old breaker. Reliance says as much in its manual: the protection is lost whenever the switch is on generator, and the fix is to fit the right breakers in the switch itself.^[9]

What I’d do before reserving.

• 1Count the TEST buttons on the circuits you’d back up. The planner above keeps count. If the answer is zero, which is common for a furnace, a well pump, central air and a water heater, the rule doesn’t touch you.
• 2If it isn’t zero, those circuits can’t go on the panel as they’re wired. Ask the installer who comes for EcoFlow’s free assessment which of yours qualify, and get it in writing.
• 3Know that any workaround is an electrician’s call under your local code, and EcoFlow’s manual doesn’t offer one. Protection moved to the first outlet on the circuit is the one people ask about. Otherwise those circuits stay off the list, and in a house wired to recent code that can mean the kitchen, the bedrooms and the laundry.
• 4Or pick a panel that documents it. The Smart Home Panel 2, sold for the DELTA Pro Ultra and the DELTA Pro 3, takes AFCI and GFCI breakers inside it. One catch for newer houses: it takes the pigtail kind only, and plug-on-neutral breakers aren’t supported yet.^[8]

Twenty ordinary panels. Even then, 8 kW is a ceiling you’ll touch on the best days only.

The Plus has two solar inputs, each rated 4,000 W, 40 to 450 V and 16 A.^[2] The voltage ceiling sets the string. Panel voltage climbs on a cold morning, so I size for a −10 °C dawn (14 °F). With EcoFlow’s own 400 W rigid panel, ten in a row reach 416 V in that cold.^[13] One more would reach 458 V, over the limit. So it’s ten per input, two inputs, twenty panels.

That’s 8,000 W on the labels, about 420 square feet of roof and 960 lb of glass and aluminum before the racking. It’s roughly the floor of a two-car garage, tipped up onto your roof.

Panels deliver about 72% of their rating on a good sunny day, once heat, sun angle, wiring and dust take their share. Twenty of these then make around 5,800 W. A cold, clear spring noon gets closer to the label. You can’t wire a second string alongside to make up the difference, because two strings would push the short-circuit current past the 20 A the label allows. Bigger panels help a little: ten of Anker’s 440 W rigid panels per input make 8,800 W on paper and about 6,300 W in good sun.

If you already have panels on the roof, they don’t go into this input at all. An existing grid-tied array connects through the Smart Home Panel 10 and a current sensor, which EcoFlow calls AC coupling. On a normal day it stores your surplus. In a blackout, though, that array shuts itself off, as every grid-tied system must, and EcoFlow’s own FAQ says it can’t charge the TITAN then.^[2] Charging during an outage means panels wired to the TITAN’s own input.

Longer than three years, unless the battery takes credit for the panels.

EcoFlow’s pages promise up to $2,900 a year and a three-year payback for the TITAN, and $3,100 for the Plus. The footnote is upfront about where those come from: a 15 kWh system (three packs) with 4 kW of solar for the TITAN or 8 kW for the Plus, in a San Diego house using 16.5 kWh a day on SDG&E’s TOU-DR2 rate.^[1][2]

So I priced that house’s bill. On TOU-DR2’s January 2026 rates, with 30% of its power used in the 4 to 9 pm peak, it comes to about $3,420 a year.^[10] $290 of that is a fixed daily charge no battery can touch. EcoFlow’s $2,900 is most of what’s left, and the Plus’s $3,100 is 99% of the energy part. Doubling the solar adds $200 a year. That’s what a bill looks like when it runs out.

It’s a fair figure for solar and storage together. Most of it is the panels’ work. And that system isn’t one TITAN: three packs means a TITAN plus two $2,999 extra batteries,^[5] about $12,998 at EcoFlow’s “$7,000 range” for the first unit with panel and installation, before the solar.^[3]

The battery’s own job is moving the panels’ energy into the evening, so I priced that job on its own: one pack, cycled once a day. There’s a catch the manual spells out. While the grid is up, the panel only lets the battery discharge down to its Backup Reserve, 50% by default, so half the pack sits waiting for an outage.^[6] You can set the reserve lower in the app. The table reads both ways.

Nothing else shortens it. The 30% federal credit for home batteries ended for anything installed after 2025,^[11] and EcoFlow’s warranty runs five years,^[1] so even the solar case pays back after the warranty does.

So here’s where I land. Buy a TITAN for the outage. If you’re on time-of-use rates with a roof that exports, the savings are a real bonus, about $500 a year per pack in San Diego at the default reserve and up to $900 if you let it cycle fully. That second figure costs you the outage cover you bought it for. On a flat rate there aren’t any savings.

Only if your breakers make the choice for you.

One owner suggested spending a little more on a DELTA Pro Ultra.^[12] EcoFlow’s store has it at $4,199 today for 6,144 Wh, against a TITAN from $3,199 for 5,018 Wh. That’s $683 a kilowatt-hour against $638. Both deliver 7,200 W. The DPU weighs 181.8 lb to the TITAN’s 119, and takes 5,600 W of solar to the Plus’s 8,000. Both home panels are sold separately.

Where the DPU pulls ahead is its panel. The Smart Home Panel 2 holds 12 circuits, takes breakers up to 60 A, and accepts AFCI and GFCI breakers inside it.^[8] So a range or a car charger fits, and so does a kitchen on dual-function breakers. If your list has either, that’s worth paying for. If none of it does, the TITAN does the same job for less, with more solar on the Plus. Our side-by-side checks both prices twice a day: TITAN vs DELTA Pro Ultra, and the DELTA Pro Ultra’s own page.

Model figures are EcoFlow’s, from its US store’s Tech Specs and comparison table read on October 23, 2026. Circuit wattages are planning figures for a typical unit from our appliance library, the same table behind our calculator; your nameplate wins. String sizes come from the solar engine behind our panel pages, checked at −10 °C. Rates are SDG&E’s published TOU-DR2 table, and the payback is shown at the app’s default backup reserve and at zero. Every assumption is printed beside the figure it produces. Where EcoFlow hasn’t published something, we say so instead of guessing.