1
Voltage Gate
PASSDevice output type must match generator output.
120V required -> 120V/240V available
Yes, the Delta Pro Ultra X can run a Space Heater (1,500W)
Yes - Delta Pro Ultra X has enough running and surge power for the Space Heater (1,500W). Target ~1651W running / 1651W surge; the generator provides 12000W / 24000W.
Power Margin Analysis
12000W / 24000W Capacity Running 10349W headroom
1651W required
Surge 22349W headroom
1651W required
Decision Gate Waterfall
Same decision gates as the engine: voltage, running, surge. Runtime is shown as operational context.
2
Running Gate
PASSContinuous draw with safety buffer applied.
1,651W required -> 12,000W available (10,349W headroom)
Required 1,651W required
Available 12,000W
3
Surge Gate
PASSStartup peak with safety buffer applied.
1,651W required -> 24,000W available (22,349W headroom)
Required 1,651W required
Available 24,000W
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
Continuous estimate: 2.9h
Typical cycling estimate (65% duty): 4.5h
Device profile reference: up to 4h per day.
Power bars show required versus available output for each gate.
View full compatibility reportDecision Snapshot
Quick compatibility, required headroom, and model-specific context at a glance.
⚡
12000W
Running Power
🔋
6144Wh
Capacity
⏱️
~2.9h
Est. Runtime
☀️
10000W
Solar Input
Quick Compatibility Check
- 1 Running headroom: target 1651W; generator provides 12000W.
- 2 Surge headroom: target 1651W; generator provides 24000W.
- 3 Tip: leave headroom for startup spikes and warm conditions.
Model-Specific Results
3 of 3 models are SAFE or TIGHT. Most demanding model: Lasko CT16450 (Ceramic Tower) (1,500W surge).
| Model | Running | Surge | Verdict | Runtime | Source |
|---|---|---|---|---|---|
| Lasko CT16450 (Ceramic Tower) | 1,500W | 1,500W | Safe | ~2.9h | OEM Verified |
Show expert analysisTechnical: **Running load:** 1500 W (high setting). **Surge:** 1500 W (resistive heating element, no inrush). **Voltage:** 120 V AC required. Ceramic heating element with fan-forced air distribution. Field note: Switch to low mode (900W) to extend runtime by 67% on battery. Thermostat cycling helps too — once the room reaches target temp, draw drops to zero between cycles. How long can I heat a room on a portable power station? At 1500W on high, a 2000Wh station (1400Wh usable) provides roughly 1 hour of continuous heat. On low (900W), that extends to about 1.5 hours. Thermostat cycling extends these estimates further. | |||||
| De'Longhi TRD40615E (Oil-Filled Radiator) | 1,500W | 1,500W | Safe | ~2.9h | OEM Verified |
Show expert analysisTechnical: **Running load:** 1500 W (high setting). **Surge:** 1500 W (resistive heating, no inrush). **Voltage:** 120 V AC required. Oil-filled radiator with thermal mass — continues radiating heat after power is cut, unlike ceramic or fan heaters. Field note: Oil-filled radiators are the best space heater type for battery backup. The thermal mass means the unit keeps heating the room even during thermostat off-cycles or after you turn it off — stretching your battery further than a ceramic or fan heater. Is an oil-filled radiator better than a ceramic heater on battery? For battery efficiency, yes. The oil reservoir stores heat and radiates it passively during thermostat off-cycles. A ceramic heater stops heating the moment power cuts. Both draw 1500W on high, but the radiator delivers more total warmth per Wh consumed. | |||||
| Vornado VH200 (Whole Room Vortex) | 1,500W | 1,500W | Safe | ~2.9h | OEM Verified |
Show expert analysisTechnical: **Running load:** 1500 W (high setting). **Surge:** 1500 W (resistive heating, no inrush). **Voltage:** 120 V AC required. Vortex air circulation distributes heat throughout the room more evenly than directional heaters. Field note: The 750W low setting is useful on battery — it halves power draw while still circulating warm air via the vortex fan. On a 2000Wh station, low mode provides nearly 2 hours of whole-room heating vs 1 hour on high. Can I use the Vornado VH200 on low mode to save battery? Yes — low mode draws 750W, half of the 1500W high setting. This doubles your runtime on a portable power station. The vortex circulation still distributes heat effectively at the lower setting. | |||||
How This Pairing Performs Across Our Database
This unit ranks #23 of 23 compatible generators for this device by buffered margin (Overkill class).
How Space Heater (1,500W) Performs Across 33 Tested Generators
23 of 33 generators are SAFE+TIGHT for Space Heater (1,500W).
23
Safe+Tight
Safe 21 (64%)
Tight 2 (6%)
Fail 10 (30%)
Power Comparison: EcoFlow Delta Pro Ultra X vs Top Alternatives for Space Heater (1,500W)
EcoFlow Delta Pro Ultra X Safe Overkill
Current unit
Running 12,000W
Surge 24,000W
Fit class uses buffered needs (running and surge) for this device.
Specs & Surge Analysis
Heating & Cooling
Space Heater (1,500W)
Winter Storm Backup
Select Your Model:
1500W
Running
1500W
Surge
120V
Required
True Surge™ Analysis
Safety Buffer: +10% Running Power Usage 14% Utilization
1651W required 12000W Capacity
10349W headroom
Surge/Startup Peak 7% Utilization
1651W required 24000W Capacity
22349W headroom
Voltage Match 120V ↔ 120V/240V ✓
⚠️
Before You Buy: Connection Check
Installation warning
These systems are often hardwired to a home panel. To run them from a portable station, you may need a transfer switch installed by an electrician. You cannot just plug it in.
Free Tools
Station Tools
Generator Insights
With 24,000W surge capacity, this system can handle typical compressor startup events found in central air conditioners, well pumps, and refrigeration equipment. The 12,000W continuous rating supports sustained high-load operation across multiple circuits. At 6,144Wh usable capacity, runtime depends on connected load, but this configuration can support whole-home essentials during extended outages.
This unit uses LFP chemistry, a formulation widely recognized for thermal stability in residential backup applications. The manufacturer provides operational guidelines in their documentation, and users should follow all installation and grounding instructions. Source: EcoFlow DELTA Pro Ultra X User Manual (manufacturer documentation).
Extend Runtime with Solar
Keep your Space Heater (1,500W) running with solar • MPPT: 80– 500V • Max: 10000W
Official EcoFlow
400W Panel
1 Hour Sun =
+0.2h per sun hour
Amp Limited
Full in ~11h Requires 2 panels in series to reach the 80V start threshold.
Smart Value Anker
400W Panel
1 Hour Sun =
+0.2h per sun hour
Amp Limited
Full in ~11h Requires 2 panels in series to reach the 80V start threshold.
Smart Value Bluetti
350W Panel
1 Hour Sun =
+0.2h per sun hour
Amp Limited
Full in ~8.4h Requires 3 panels in series to reach the 80V start threshold.
Technical Analysis
Spec-Based • No GuaranteesTechnical Breakdown
Running load: 1500 W continuous. Surge: 1500 W (resistive heating element — no motor inrush). Voltage: 120 V AC required. All standard US space heaters draw 1500W max (the 15A circuit limit). Technology varies — ceramic, oil-filled, vortex — but the wattage ceiling is the same.
Expected Behavior
Estimated runtime: ~2.9h. Draws 1500W on high regardless of heater type. Low modes range from 600W (oil-filled) to 900W (ceramic). Four hours daily at max consumes 6000 Wh. Thermostat cycling with duty_cycle 0.65 reduces effective consumption to ~3900 Wh.
Field Note
All 1500W space heaters need the same generator capacity. The difference is in runtime strategy: oil-filled radiators retain heat passively, vortex heaters warm rooms faster, ceramic towers are compact. Use low mode (600-900W) on battery to extend runtime significantly.
Frequently Asked Questions
Can the EcoFlow Delta Pro Ultra X power a Space Heater (1,500W)?
Yes. The EcoFlow Delta Pro Ultra X provides 12000W running / 24000W surge. The Space Heater (1,500W) needs 1651W / 1651W (including 10% buffer). That leaves 10349W of running headroom and 22349W of surge margin.
How long will the Delta Pro Ultra X run a Space Heater (1,500W)?
Approximately 2.9 hours, based on the Space Heater (1,500W)'s 1500W draw and the Delta Pro Ultra X's 6144Wh capacity (70% usable after real-world losses).
What Else Can You Run?
With 1120W allocated to the Space Heater (1,500W), the Delta Pro Ultra X still has ~6980W of margin. These devices could run simultaneously:
🌀
Box Fan (Medium)
60W
💡
LED Lamp
10W
🔥
Space Heater (Eco)
750W
📺
55' LED TV
80W
🥘
Slow Cooker
200W
📱
Smartphone Fast-Charge
20W
Power Tip: To get the most out of your Delta Pro Ultra X, keep it in a well-ventilated area. Extreme temperatures can slightly reduce the efficiency of the LFP/NMC cells.
Compare all 33 generators for the Space Heater (1,500W)
Ranked by budget, runtime, and overall compatibility.
Related Guides: How to Size a Power Station
Technical Sourcing & Verification
ID: ecoflow-delta-pro-ultra-x-space-heater-1500w 🏛️ Device Data Source
Engineering Est. Safety Factor Applied
Derived from variant list (max of variants). Running worst case = all three variants (1500W). Surge = running (resistive heating element — no motor inrush).
⚡ Generator Specs Source
OEM Verified
EcoFlow DELTA Pro Ultra X User Manual
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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