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WATTMATRIX LAB BENCH // 230V 50Hz
WattMatrix
☕
WILL POWER YOUR SPACE HEATER230V AC
2.0HRS
Continuous: 900W
Surge Peak: 900W

≈ 0.1 days (24h/day) · Safe motor start buffer (81.3% margin).

Ready to Run
Motor Start Margin+3900W Safe Buffer(900W Peak / 4800W Max)

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

space heater running (1,500 W max) and start-up (1,500 W max) draw fit the EcoFlow DELTA 2 Max's 2,400 W continuous / 4,800 W surge ratings.

LOW LOAD
2.4HRS

low heat setting (750 W continuous)

750 W848.45 W net
TYPICAL SPECNOMINAL
2.0HRS

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

900 W1021.43 W net
HIGH LOAD
1.2HRS

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

1500 W1735.68 W net
TELEMETRY // PRIMARY READOUT230V AC
CALIBRATED RUNTIME
2.0HRS

≈ 0.1 days (24h/day)

NET PACK DRAW
1021.43W

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

CONTINUOUS_LOAD_UTILIZATION38% (900W / 2400W)
APPLIANCE_DRAW900W RUN / 900W PK
SOURCE_LIMIT2400W CONT / 4800W PK
SOLAR_RECHARGE (1000W)2.69H (0.67D)
PARAMETER_SANDBOX // ENGINE v1.0.0

Live Load, Duty Cycle & Usage Simulator

900 W
MIN 375WNOMINAL 900WMAX 2100W
100%
5% INTERMITTENT50% CYCLING100% CONTINUOUS
24 h/day
1H / DAY8H OVERNIGHT24H CONTINUOUS
0 W
0W (OFF)200WMAX 1000W
TEMPERATURE DERATE
CONTINUOUS
2.0HRS
OUTAGE SPAN
0.1days
AVG LOAD
900W
PACK DRAW
1021.43W
Stack space heater with other devices on EcoFlow DELTA 2 Max in the Load BuilderOpen Builder →
HARDWARE_INTERFACE // ELECTRICAL AUDIT

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

1. AC RECEPTACLE & PLUG MATCH
BS 1363 / Europlug (230V 13A Domestic) → DIRECT FIT

Provides 6× 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 4800W LIMIT

Electronic/resistive load with 1× start-up profile (81.3% surge margin).

4. UPS SWITCHOVER & EXPANSION
UPS: UPS (20MS) · EXPAND: UP TO 6144WH

Wall AC fast charge at up to 1800W (66m to 80%, 80m to 100%).

PHYSICS // TRANSIENT DRAW ENVELOPE

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

SAFE INRUSH HEADROOM (+3900W BUFFER)
0ms250ms500ms750ms1000ms0W2s Surge Limit (4800W)4800WContinuous Rating (2400W)2400WStartup: 900WRunning (FLA): 900W

Safe envelope verified: Starting surge (900W) remains comfortably below the 4800W 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 Max)
  • ›X-Boost engages automatically above 2,400 W and runs resistive loads up to 3,400 W at reduced voltage. EcoFlow says it's meant for heating loads, not voltage-sensitive devices, and it's unavailable during wall-charging bypass.
  • ›UPS: switches to battery within 20 ms per the manual and product page (EcoFlow's FAQ says 30 ms). EcoFlow says it 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.
  • ›Two 500 W solar inputs give 1,000 W combined; EcoFlow's 43-minute 0–80% figure needs 1,800 W wall charging plus solar at the same time.
  • ›The car socket and both DC5521 ports share one 126 W budget.
  • ›All six AC outlets are 20 A T-slot NEMA 5-20R.
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 Max & 1,500W Portable Space Heater

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

About 2 hours on AC power, with the space heater averaging 900 W (medium heat setting or thermostat-cycled high heat (900 W)). The EcoFlow DELTA 2 Max then draws about 1,021 W from its battery, including 15 W for the inverter itself. Best case: about 2.4 hours (low heat setting (750 W continuous)). Worst case: about 1.2 hours (high heat setting continuous (1,500 W, 12.5 A at 120 V)).

How long does the EcoFlow DELTA 2 Max take to recharge?

On wall power: about 66 minutes to 80% and 80 minutes to full (EcoFlow figures). With its maximum 1,000 W of solar input connected, expect about 800 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-max/portable-space-heaterSYSTEM HASH: 0x86B745053661VERIFIED TIMESTAMP: 2026-10-21T00:00:00Z
SOURCE_CITATIONS // ECOFLOW DELTA 2 MAX (5)
LOAD_CITATIONS // 1,500W PORTABLE SPACE HEATER (3)

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