RabbitMQ EventBasicConsumer not working

BACKGROUND INFO

I have a queue (for emails) in RabbitMQ, and want to build a consumer for it. The queue is used by another .NET app for sending emails to customers. I wanted the emailing logic to sit outside of the .NET app, and also have the benefits of durability ...etc that RabbitMQ offers.

ISSUE

The .NET app is able to publish/push emails onto the queue, but I have difficulty building the consumer! Here's my code for the consumer:

// A console app that would be turned into a service via TopShelf
public void Start()
{
  using (_connection = _connectionFactory.CreateConnection())
  {
    using (var model = _connection.CreateModel())
    {
      model.QueueDeclare(_queueName, true, false, false, null);
      model.BasicQos(0, 1, false);

      var consumer = new EventingBasicConsumer(model);
      consumer.Received += (channelModel, ea) =>
      {
        var message = (Email) ea.Body.DeSerialize(typeof(Email));
        Console.WriteLine("----- Email Processed {0} : {1}", message.To, message.Subject);
        model.BasicAck(ea.DeliveryTag, false);
      };
      var consumerTag = model.BasicConsume(_queueName, false, consumer);
    }
  }
}

The code above should be able to grab messages off the queue and process them (according to this official guide), but this isn't happening.