WILL POWER YOUR SPACE HEATER230V AC

59MIN

Continuous: 900W

Surge Peak: 900W

≈ 0.0 days (24h/day) · Safe motor start buffer (66.7% margin).

Ready to Run

Motor Start Margin+1800W Safe Buffer(900W Peak / 2700W Max)

How long will an EcoFlow DELTA 2 run a space heater?

space heater running (1,500 W max) and start-up (1,500 W max) draw fit the EcoFlow DELTA 2's 1,800 W continuous / 2,700 W surge ratings.

LOW LOAD

1.2HRS

low heat setting (750 W continuous)

750 W857.22 W net

TYPICAL SPECNOMINAL

59MIN

medium heat setting or thermostat-cycled high heat (900 W)

900 W1034.25 W net

HIGH LOAD

35MIN

high heat setting continuous (1,500 W, 12.5 A at 120 V)

1500 W1773.5 W net

TELEMETRY // PRIMARY READOUT230V AC

CALIBRATED RUNTIME

59MIN

≈ 0.0 days (24h/day)

NET PACK DRAW

1034.25W

System standby power: 15W (1.5% of total draw)

CONTINUOUS_LOAD_UTILIZATION50% (900W / 1800W)

APPLIANCE_DRAW900W RUN / 900W PK

SOURCE_LIMIT1800W CONT / 2700W PK

SOLAR_RECHARGE (500W)2.69H (0.67D)

PARAMETER_SANDBOX // ENGINE v1.0.0

Live Load, Duty Cycle & Usage Simulator

Active Running Load900 W

MIN 375WNOMINAL 900WMAX 2100W

Compressor / Cycling Duty Factor100%

5% INTERMITTENT50% CYCLING100% CONTINUOUS

Active Usage Window per Day24 h/day

1H / DAY8H OVERNIGHT24H CONTINUOUS

Solar Generation Array0 W

0W (OFF)200WMAX 500W

TEMPERATURE DERATE

CONTINUOUS

59MIN

OUTAGE SPAN

0.0days

AVG LOAD

900W

PACK DRAW

1034.25W

Stack space heater with other devices on EcoFlow DELTA 2 in the Load BuilderOpen Builder →

HARDWARE_INTERFACE // ELECTRICAL AUDIT

EcoFlow DELTA 2 × 1,500W Portable Space Heater Electrical Interface

1. AC RECEPTACLE & PLUG MATCH

BS 1363 / Europlug (230V 13A Domestic) → DIRECT FIT

Provides 2× CEE 7/3 (230V) (120V 60Hz).

2. WAVEFORM & THD SENSITIVITY

PURE SINE WAVE // STANDARD LOAD

Pure sine wave inverter output. Safe for all standard household appliances.

3. STARTING SURGE (MOTOR INRUSH) MARGIN

900W TYP (1500W MAX) VS 2700W LIMIT

Electronic/resistive load with 1× start-up profile (66.7% surge margin).

4. UPS SWITCHOVER & EXPANSION

UPS: EPS (30MS) · EXPAND: UP TO 3072WH

Wall AC fast charge at up to 1200W (50m to 80%, 80m to 100%).

PHYSICS // TRANSIENT DRAW ENVELOPE

Dynamic Inrush Surge Curve (Locked Rotor Amps vs Steady State)

SAFE INRUSH HEADROOM (+1800W BUFFER)

Safe envelope verified: Starting surge (900W) remains comfortably below the 2700W surge trip line, with steady-state operation settling into the safe continuous zone at 900W.

LAB_RECORDS // EMPIRICAL OBSERVATIONS

Field Engineering Quirks & Operational Failure Modes

Hardware Bench Constraints (EcoFlow DELTA 2)

›X-Boost engages automatically above 1,800 W and runs resistive loads up to 2,200 W at reduced voltage. EcoFlow says it's meant for heating loads, not voltage-sensitive devices, and it's unavailable while the AC output is in wall-charging bypass.
›EPS mode: on wall power, connected loads run from the grid and switch to battery within 30 ms if the power fails. EcoFlow says this is not 0 ms and not suitable for servers or workstations.
›The AC output switches off after 12 hours with no load; set the app's AC timeout to 'Never' for intermittent loads such as fridges.
›Only 2 of the 6 AC outlets are grounded (NEMA 5-20R); the other 4 are two-prong NEMA 1-15R.
›The car socket and both DC5521 ports share one 126 W budget.
›EcoFlow's US product page lists 3,000 cycles to 80%, while the July 2025 US manual says 4,000; we use 3,000.

Cycle Physics & Dwell Behavior (1,500W Portable Space Heater)

›UL 1278 caps standard 15 A / 120 V cord-connected portable heaters at 1,500 W continuous (80% of an 1,800 W branch circuit), draining a 1,000 Wh power station in about 35–40 minutes on High.
›Purely resistive heaters have no motor start-up spike (surge watts equal running watts) and are the primary load class supported by voltage-reduction modes such as EcoFlow X-Boost, Anker SurgePad, and Bluetti Power Lifting.
›Always plug a 1,500 W heater directly into the power station or generator receptacle rather than through a light-gauge extension cord to prevent plug overheating at 12.5 A continuous draw.

KNOWLEDGE_BASE // VERIFIED QA

Frequently Asked Questions: EcoFlow DELTA 2 & 1,500W Portable Space Heater

How long will an EcoFlow DELTA 2 run a space heater?

About 59 minutes on AC power, with the space heater averaging 900 W (medium heat setting or thermostat-cycled high heat (900 W)). The EcoFlow DELTA 2 then draws about 1,034 W from its battery, including 15 W for the inverter itself. Best case: about 1.2 hours (low heat setting (750 W continuous)). Worst case: about 35 minutes (high heat setting continuous (1,500 W, 12.5 A at 120 V)).

How long does the EcoFlow DELTA 2 take to recharge?

On wall power: about 50 minutes to 80% and 80 minutes to full (EcoFlow figures). With its maximum 500 W of solar input connected, expect about 400 W in full sun, so a full recharge takes roughly 2.7 hours of full sun, so it can refill in a single day with 4 peak sun hours.

AUDIT_LOG // DATA PROVENANCE & CITATIONS

NODE: ecoflow-delta-2/portable-space-heaterSYSTEM HASH: 0x074354D6D11FVERIFIED TIMESTAMP: 2026-10-21T00:00:00Z

SOURCE_CITATIONS // ECOFLOW DELTA 2 (8)

[01] MANUAL2026-10-21
EcoFlow DELTA 2 User Manual (US) (EcoFlow)
[02] MANUFACTURER_SPEC2026-10-21
EcoFlow DELTA 2 product page (US) (EcoFlow)
[03] MANUFACTURER_SPEC2026-10-21
EcoFlow DELTA 2 North American outlet panel image (EcoFlow)
:: Outlet types read from the official image: T-slot outlets are NEMA 5-20R, two-prong outlets NEMA 1-15R.
[04] MANUFACTURER_SPEC2026-10-21
EU Declaration of Conformity, model EFD330 (dated 2022-09-14) (EcoFlow)
[05] MANUFACTURER_SPEC2026-10-21
DELTA 2 Max Smart Extra Battery page (lists DELTA 2 compatibility) (EcoFlow)
:: Maximum 3,072 Wh = 1,024 Wh base + one 2,048 Wh DELTA 2 Max Smart Extra Battery; the DELTA 2 accepts one extra battery.
[06] MANUFACTURER_SPEC2026-10-21
EcoFlow Canada DELTA 2 product page (compatible extra batteries) (EcoFlow)
[07] MANUFACTURER_SPEC2026-10-21
EcoFlow US store DELTA 2 listing (EcoFlow)
:: Redirects (HTTP 301) to the DELTA 3 product page as of 2026-10-21.
[08] PRESS2026-10-21
EcoFlow DELTA 2 launch coverage with US launch price (2022-10-04) (Electrek)

LOAD_CITATIONS // 1,500W PORTABLE SPACE HEATER (3)

[01] GOVERNMENT2026-10-21
Portable Heaters (Small Space Heaters Energy Saver Guide) (U.S. Department of Energy)
:: Standard US portable electric heaters are rated 1,500 W max on 120 V / 15 A circuits, with 750 W low and 900–1,000 W medium or thermostat-modulated operation.
[02] MANUAL2026-10-21
De'Longhi TRRS0715E 1500W Oil-Filled Radiator Instruction Manual (De'Longhi)
:: Documents three resistive heat settings: Min (~700 W), Med (900 W), and Max (1,500 W) at 120 V AC.
[03] MANUAL2026-10-21
Vornado VH200 Whole Room Heater Owner's Guide (Vornado Air)
:: Documents three heat settings: 750 W (Low), 1,125 W (Medium), and 1,500 W (High) on a 120 V NEMA 1-15P two-prong polarized plug.

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