Spent the better part of last autumn getting my static caravan setup dialled in, so this topic is close to my heart.
I'd been running a cheap Chinese inverter for about eight months before it finally gave up during a particularly miserable November week — not ideal when you're relying on it for heating control and a few creature comforts. That experience pushed me toward Victron, specifically the MultiPlus-II, and I haven't looked back.
The integration with VenusOS and the whole Victron ecosystem is genuinely impressive once you get your head around it. Monitoring everything through VRM remotely gives real peace of mind, especially when I'm not on site.
That said, it isn't a cheap entry point. If budget is the main concern, I know folk on here have had decent results with the Giandel and Renogy pure sine wave units for lighter loads — worth a read through the older threads.
A few things worth considering when making your choice:
- Continuous wattage vs. surge capacity — motor loads like pumps will punish an undersized inverter
- Transfer switch speed if you're blending with grid or generator
- Idle draw matters enormously off-grid
What's your intended load like, and are you pairing it with a battery bank already? Makes quite a difference to the recommendation. Others on here will have strong opinions too — particularly around the Solis and Growatt options if you're leaning hybrid.