A hybrid water heater should be kept in the upright position when transporting. An upright position is the best option to prevent damage to the delicate glass liner.

While it’s true you can transport the water heater horizontally, there are risks involved and this option should only be used as a last resort.
For example, if you plan to transport the unit on its side, make sure to lay down padding for support and cushion. Furthermore, you will have to avoid bumps in the road when driving.
Should I Hire Someone? Will It Fit in My Car?
Transporting a hybrid water heater can be done solo, with the right precautions. If you do it yourself, you will need a strategy to safely get it home from the store.
As mentioned above, you should transport the water heater vertically. You will also need to consider the size of your vehicle.
A four-door small sedan will not be big enough. If you have a mid-sized car, you should be able to safely transport the unit assuming it fits. For example, a mid-sized to large-sized car should fit a 30-gallon water heater.
If your water heater is larger, such as 40 to 50 gallons, the best option would be an SUV or truck. The larger the car, the easier the process will be.
One of the best options is to measure the water heater and the available space in your car. By knowing the exact dimensions, you will have confidence when transporting.
You will also be better able to determine whether or not you should hire someone.
Are There Any Dangers to Transporting a Hybrid Water Heater?
When it comes to transporting items with glass linings, you need to be extra careful. Something as small as a crack could destroy the entire unit and render it unusable. This means you need to be cautious to not damage the glass, the anode rod or the interior dip tube.
The last thing you want to do is spend all this time and energy hauling it home, only to realize you damaged the unit.
Assuming you are transporting in the upright position and have secured it inside the vehicle, the risk for damage is quite low. Make sure you take the time to strap the unit in securely. You’ll want to avoid too much movement.
If you have no other option but to lay it horizontally on its side, make sure to never lay it on the controls. The heater may include directions on how to safely do this. Adhere to the directions as every unit is different.
Regardless of which method of transport you use, make sure to handle it with care when loading in and out of the car as this is where most damage occurs. Make sure not to drop or bang the heater against any surface. It is better to be slow and cautious when performing this job.